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A researcher did a study and found on average the annual sick leave taken by a government worker is around 9 days. Assume that this

A researcher did a study and found on average the annual sick leave taken by a government worker is around 9 days. Assume that this data was based on a sample of 25 workers and that the sample standard deviation is 12 days.

Construct the 95% confidence interval for the population mean. What is your conclusion?

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