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Calculate the margin of error to estimate the population mean

Calculate the margin of error to estimate the population mean for each of the following.

a. 99% confidence level; x1 = 25; x2 = 30; x3 = 33; x4 = 21

b. 90% confidence level; x1 = 15; x2 = 17; x3 = 13; x4 = 11; x5 = 14

a. 99% confidence level; x1 = 25; x2 = 30; x3 = 33; x4 = 21

b. 90% confidence level; x1 = 15; x2 = 17; x3 = 13; x4 = 11; x5 = 14

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