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MUESTRA infnita
n= 0.5 x 1.96
0.05
n= 0.9604
= 384
0.0025
MUESTRA fnita
N= univers
n= N x 0.5 x 1.96
0.05 x !N"1# $ 0.5 x 1.96
n= 0
= 00.95%9
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