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Which is used in computing the confidence? interval

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Reference no: EM132045081

Suppose that you are testing the hypotheses H0?: p =0.39 vs. HA?: p >0.39. A sample of size 200 results in a sample proportion of 0.44

?a) Construct a 95?% confidence interval for p.

b) Based on the confidence? interval, can you reject H0 at alpha =0.025?? Explain.

?c) What is the difference between the standard error and standard deviation of the sample? proportion?

?d) Which is used in computing the confidence? interval?

Reference no: EM132045081

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