Solution :
Given that,
n =150,
x = 125
= x / n = 125 / 150 = 0.833
P0 = 0.90
1 - P0 = 1 - 0.90 = 0.10
= 0.05
nP0 (1 - P0) = 0.90 * 0.10 = 0.900
z = - P0 / [P0 * (1 - P0 ) / n]
= 0.833 - 0.90 / [(0.90 * 0.10) / 150
= - 2.73
This is the left tailed test .
P(z <-2.73 ) = 0.0032
Pvalue = 0.0032
Here p-value <
Reject the null hypothesis , because the P-value is Less than.
X) 10.2.9 Test the hypothesis using the classical approach and the P-value approach P0.90 Ho p...
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