Question 977800
The following hypotheses are given. 
H0 : π ≤ 0.83 
H1 : π > 0.83 
A sample of 140 observations revealed that p-hat = 0.88. 
At the 0.05 significance level, can the null hypothesis be rejected? 
a.	State the decision rule. (Round your answer to 2 decimal places.) 
Reject H0 if z > invNorm(0.95 = 1.645?
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b. Compute the value of the test statistic. (Round your answer to 2 decimal places.)
z(0.88) = (0.88-0.83)/sqrt[0.83*0.17/140] = 1.5750 
Value of the test statistic = 1.5750
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c.What is your decision regarding the null hypothesis? 
(reject/no not reject) H0.
Fail to reject Ho.
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Cheers,
Stan H.
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