Capitulo 6 – Las pruebas y la seleccion de





       
         
           

          




 




 
 

 

 


 


  

           












 



 



 























 
 

  

 

 


 

 






























                








  


















 





















  









   






            





  







 






            




  



















  






  
















 
 
 
 

 




















  












 
 




  









































  



 

 




             

     








  
 
 
 

 


 

 




 



 


            







 









 


 

  





       








         



        
         
         





      
         








      



         

        

         







       

             
 




            






  








 



 













  








                





 










 



            










         
          

      


     


         






       


  
















              


 




           











           

   






            
  






 







 

           


 




              




 

            
            













  



















           

           




             





 

            







           





  




































 



















 






      

  




         




         

 















   













          












 
  
















 






























             






 




 



 






  
 



 


 

 




 













































  
















 
     



 











 












  
      
              

















        

      
        


        
       




         


        


        


          
         



      
        







           


        


           
         
         






         





      
       
      
         

       
       


  

 




















































































 








  














    










 














               






  









































  

      








   







 



              






            



















  

            










 


              


           



      





               


 


 








 




  
 



 




 


           








 







            

  







 





 





  

 




















            


            











           


 



  





             
            

  










 








            



  


              









 


 







 






 
 

 




 
 










  





















            
              



           






















           
  




             





            






 



 




  









             
            




 









  





              


           



 









          















 
 


 
 

 


  


           


   






            


 




   












 
 
 

 


 



 

 
 

 

  
    

 

 



 




 


 




 



 




 







 











  



 
 

 



 

 

 


 

 


 





















  



             











          

           


             








              



            
               








 




 

  

 
 







               










               
                  







               

             


           






 






  


 




 




        



















       
         




           



 




 

 

 












      

  


 

             



 

 
 
       


      

 
 
 







 
 



 

 


 
 
 

 
            


  

              

 

 




  
 
 
 

 
 


 
 

 

  

 
 



 


 


            
       






 

     

 

           

 
          







 



  

 
 
 
             




 

 
             

 


           

 

              

 

 


 

 


             
         

 

 


  

 
                


            



 
 
            




  
 

 
 
 
 
           

 

  


  

 

             

            

 
 

 

 
 
 

  


  

    

 


 

             





 
               
 


           

  

 



 

 

 

 


              

 



 

           


 
 

 







 




            














  
 






             



