A post office clerk operates with 75% utilization. The coefficient of variation for the service process is 0.6 and the coefficient of variation of the arriva process is 0.9. The average processing time is 4 minutes. What is the average time a customer spends in the system according to the single-server queue model? Multiple Choice 7.02 minutes О 4 minutes O 11.02 minutes

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
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A post office clerk operates with 75% utilization. The coefficient of variation for the service process is 0.6 and the coefficient of variation of the arrival
process is 0.9. The average processing time is 4 minutes. What is the average time a customer spends in the system according to the single-server
queue model?
Multiple Choice
○ 7.02 minutes
4 minutes
11.02 minutes
О
3.51 minutes
Transcribed Image Text:A post office clerk operates with 75% utilization. The coefficient of variation for the service process is 0.6 and the coefficient of variation of the arrival process is 0.9. The average processing time is 4 minutes. What is the average time a customer spends in the system according to the single-server queue model? Multiple Choice ○ 7.02 minutes 4 minutes 11.02 minutes О 3.51 minutes
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