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Determine the sample size necessary to estimate a

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Reference no: EM13580631

Question 1:

a) A statistics practitioner wants to test the following hypotheses:

Ho: p=.70
H1: p> .70

A random sample of 100 produced B (beta) =.73

Calculate the p-value of the text.

b) Repeat part a with p = .72

c) Repeat part a with p = .71

d) Describe the effect on the z-statistic and its p-value of decreasing the sample proportion.

Question 2:

Determine the sample size necessary to estimate a population proportion to within .01 with 90% confidence assuming you have no knowledge of the approximate value of the sample proportion.

Reference no: EM13580631

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