A Company Is Interested in Estimating ,The Mean Number

question 62

Multiple Choice

A company is interested in estimating ,the mean number of days of sick leave taken by its employees.The firm's statistician randomly selects 100 personnel files and notes the number of sick days taken by each employee.The sample mean is 12.2 days and the sample standard deviation is 10 days.Calculate a 93% confidence interval for ,the mean number of days of sick leave.

• A)[10.725 13.675]
• B)[10.390 14.010]
• C)[12.019 12.381]
• D)[12.053 12.348]
• E)[11.735 12.665]

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Definitions:

Compounded Quarterly

The process of calculating interest on a principal amount at a specified interest rate, with the interest being added to the principal at the end of every three months.

End-Of-Quarter Payments

Payments that are made at the end of each quarter, typically in a financial or leasing agreement.

Monthly Payments

Regular payments made once a month, commonly in the context of loans, rent, or other agreements.

Present Value

The present value is the current worth of a future sum of money or stream of cash flows given a specified rate of return.