Helen runs a small shop where she provides a service. She is able to process an average of 8 customers per hour. An average of 5 customers per hour seek this service at her shop. What is:   a) the probability that Helen will not be working with a customer (no customers) when the shop phone rings? b) the probability of 4 customers in the system? c) the average time a customer spends waiting in line (in minut

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 26P
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Question 3) Waiting Line Analysis

 

Helen runs a small shop where she provides a service. She is able to process an average of 8 customers per hour. An average of 5 customers per hour seek this service at her shop. What is:

 

a) the probability that Helen will not be working with a customer (no customers) when the shop phone rings?

b) the probability of 4 customers in the system?

c) the average time a customer spends waiting in line (in minutes)?

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ISBN:
9781337406659
Author:
WINSTON, Wayne L.
Publisher:
Cengage,