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The following hypotheses are given. H0 : π ≤ 0.81 H1 : π > 0.81 A...

The following hypotheses are given. H0 : π ≤ 0.81 H1 : π > 0.81 A sample of 80 observations revealed that p = 0.95.

At the 0.01 significance level, can the null hypothesis be rejected? State the decision rule. (Round your answer to 2 decimal places.

Reject H0 if z >

Compute the value of the test statistic. (Round your answer to 2 decimal places.)

math   Statistics-And-Probability   
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Answer #1
Reject H0 if z >2.33

.........................................................by using Z table or by using Excel command =NORMSINV(1-0.01)

Z test statistic formula for proportion              


=3.19          
  

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