Question: Assume that you want to construct a95% confidence interval estimate of a population mean. Find an estimate of the sample size needed to obtain the

Assume that you want to construct a95% confidence interval estimate of a population mean. Find an estimate of the sample size needed to obtain the specified margin of error for the95% confidence interval. The sample standard deviation is given below.

Margin of errorequals

=$3

3, standard deviationequals

=$18

18

The required sample size is ?

Round up to the nearest whole number as need it

find the 95% confidence interval

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