What is the average time a customer is in the shop

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Reference no: EM13224835

Benny the Barber owns a one-chair shop. At barber college, they told Benny that his customers would exhibit a Poisson arrival distribution and that he would provide an exponential service distribution. Benny the Barber is considering the addition of a second chair. Customers would be selected for a haircut on a FCFS basis from those waiting. Benny has assumed that both barbers would take an average of 20 minutes to give a haircut, and that business would remain unchanged with customers arriving at a rate of three per hour.
What is the average number of customers waiting?
What is the average time a customer waits in line?
What is the average time a customer is in the shop?

Reference no: EM13224835

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