Suppose that a sample is drawn and z2 196 and 15 answer, Ask an Expert

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Suppose that a sample is drawn and z(?/2) = 1.96 and ? = 15. Answer the following questions:

(A) If the Maximum Error of Estimate is 0.04 for this sample, what would be the sample size?

(B) Given that the sample Size is 400 with this same z(?/2) and ?, what would be Maximum Error of Estimate?

(D) What effect does the answer to C above have to size of confidence interval?

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