Question: There are 3 servers in the checkout area. The average interarrival time of customers is 2 minutes. The processing time is 5 minutes. The coefficients

There are 3 servers in the checkout area. The average interarrival time of customers is 2 minutes. The processing time is 5 minutes. The coefficients of variation for the arrival process and the service process are 1 and 0.85 respectively.

Suppose they want to have enough servers so that the average wait time is less than two minutes. How many servers should they have on staff? A. 2 B. 3 C. 4 D. 5

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