The service time in queues should not have a large variance, Ask an Expert

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The service time in queues should not have a large variance; otherwise, the queue tends to build up. A bank regularly checks service time by its tellers to determine its variance.

A random sample of 22 service times (in minutes) gives s² = 8. Give a 95% confidence interval for the variance of service time at the bank.

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Statistics and Probability, Statistics

Category:- Statistics and Probability
Reference No.:- M92183366

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