What is the margin of error

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According to the Census Bureau, 2,475,780 people are employed by the federal government in the United States. Suppose that a random sample of 3,500 of these federal employees was selected, and the number of sick hours each of these employees took last year was collected from an electronic personnel database. The data collected in this survey are provided in the file FedSickHours.

a. What is the sample mean number of sick hours taken by federal employees last year?

b. Using 99% confidence, what is the margin of errorwhat is the margin of error?

c. Using the results from parts (a) and (b), develop the 99% confidence interval estimate of the mean number of sick hours taken by federal employees last year.

Reference no: EM133033948

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