Cincinnati Enquirer Start with the Excel workbook (spreadsheet) Cincinnati Enquirer - start.xlsx. The Cincinnati Enquirer, in its Sunday business supplement, reported that the mean number of hours worked per week by those employed full time is 43.9 with a population standard deviation of 6.05 hours. A sample of 25 will be examined next week. Use this information to determine the following questions based on sampled means: a. What is the standard error of the mean in this experiment? b. What is the probability that the sample mean of full time employees worked more than 45 hours a week? c. What is the probability that the sample mean of full time employees worked less than 40 hours a week? d. What is the probability that the sample mean of full time employees worked between 38 and 44 hours a week? NOTE: In order to receive credit for this problem, you must show your work and you must use the appropriate formulas in Excel to answer the questions. Format all percentages as a percentage with 2 decimal places (i.e. 78.29%). Show all other numbers with 3 decimal places.

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Cincinnati Enquirer

Start with the Excel workbook (spreadsheet) Cincinnati Enquirer - start.xlsx.

The Cincinnati Enquirer, in its Sunday business supplement, reported that the mean number of hours worked per week by those employed full time is 43.9 with a population standard deviation of 6.05 hours. A sample of 25 will be examined next week.

Use this information to determine the following questions based on sampled means:

a. What is the standard error of the mean in this experiment? b. What is the probability that the sample mean of full time employees worked more than 45 hours a

week? c. What is the probability that the sample mean of full time employees worked less than 40 hours a week? d. What is the probability that the sample mean of full time employees worked between 38 and 44 hours a

week?

NOTE: In order to receive credit for this problem, you must show your work and you must use the appropriate formulas in Excel to answer the questions. Format all percentages as a percentage with 2 decimal places (i.e. 78.29%). Show all other numbers with 3 decimal places.