Malcom Ghana is considering opening a drive-through window for customer service. Management estimates that customers will arrive at the rate of20 per hour. The teller who will staff the window can service customers at the rate of one every two minutes. Assuming Poisson arrivals and exponential service, find Average waiting time in line.

Practical Management Science
6th Edition
ISBN:9781337406659
Author:WINSTON, Wayne L.
Publisher:WINSTON, Wayne L.
Chapter12: Queueing Models
Section12.5: Analytic Steady-state Queueing Models
Problem 9P
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Malcom Ghana is considering opening a drive-through window for customer service. Management estimates that customers will arrive at the rate of20 per hour. The teller who will staff the window can service customers at the rate of one every two minutes. Assuming Poisson arrivals and exponential service, find

Average waiting time in line.

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