Question

Determine the margin of error for a confidence interval to estimate the population mean with n = 15 and s =15.8 for the confidence levels below A. 80% B. 90% C. 99%

Answer #1

A. Margin of error at 80% confidence interval is
**5.2218**

B. Margin of error at 90% confidence interval is
**6.7108**

C. Margin of error at 99% confidence interval is
**10.5252**

Complete solution is given in attached images:

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