8. Ajax Car Rental Service has attempted to streamline the process of completing a rental contract so
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8. Ajax Car Rental Service has attempted to streamline the process of completing a rental contract so that customers may obtain cars with minimum delay. The manager has timed 20 transactions from the time the agent begins talking with the customer until the customer is handed the keys and a completed agreement. The mean time is 8.2 minutes, and the estimated standard deviation is 2.63 minutes. How many observations are required to estimate the mean time with 95 percent confidence within an accuracy of 1 minute?
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Related Book For 
Operations Management Providing Value In Goods And Services
ISBN: 9780030262074
3rd Edition
Authors: Dilworth, James B
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