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Bank manager John Deer wants to determine the percent of time that tellers are working and idle. He decides to use work sampling, and his initial estimate is that the tellers are idle 25% of the time. The working hours are from 9:00 am to 4:00 pm for five days a week. How many observations should John take in order to be 95% confident that the results will not be more than 5% away from the true result? Specify the exact time, in minutes increments, when he would make the observations on the first day? The study is to be conducted over the next 60 working days.

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Operation Management, Management Studies

Category:- Operation Management
Reference No.:- M91413634

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