Solution:
Given that,
= 0.77
1 - = 0.23
n = 500
x = 380
Level of significance = = 0.01
Point estimate = sample proportion = = x / n = 0.76
A) Yes, because nP0( 1 - P0) = 88.55
This is a two tailed test,
Test statistics
z = ( - ) / *(1-) / n
= ( 0.76 - 0.77) / (0.77*0.23) / 500
= -0.53
P-value = 2 * P(Z < -0.53 )
= 0.5952
Since, P-value = 0.5952 > 0.01, it is concluded that fail to reject H0.
on Test the hypothesis using the P-value approach. Be sure to verify the requirements of the...
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