The Eks Survey Company Employs 2000 People to Conduct Telephone

The Eks Survey Company employs 2000 people to conduct telephone surveys.Because many people don't like to answer such surveys,many "hang-ups" (whereby the person hangs up without completing the survey)occur.The owner of Eks wants to determine the mean number of "hang-ups" per employee on a particular day,using 95% confidence.He samples 50 employees,and finds that the mean number of "hang-ups" on that day was 41.0.Suppose that the standard deviation of the number of "hang-ups" for all employees is 21.8 What is the value of the margin of error? (round to four decimal places)