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A sample of size n=97 is drawn from a population whose standard deviation is=39. (a) Find the margin of error for a95%confidence interval for Round

A sample of sizen=97is drawn from a population whose standard deviation is=39.

(a) Find the margin of error for a95%confidence interval for Round the answer to at least three decimal places

(b) If the sample size weren=79, would the margin of error be larger or smaller?

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