# Confidence Interval for the Population Mean

Please post on excel.

A recent survey of 50 executives who were laid off from their previous position revealed it took a mean of 26 weeks for them to find another position. The standard deviation of the sample was 6.2 weeks. Construct a 95 percent confidence interval for the population mean. Is it reasonable that the population mean is 28 weeks?

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#### Solution Summary

A Complete, Neat and Step-by-step Solution is provided in the attached Excel file.

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