Operations Management: Processes And Supply Chains (12th Edition) (what's New In Operations Management)
12th Edition
ISBN: 9780134742205
Author: Lee J. Krajewski, Manoj K. Malhotra, Larry P. Ritzman
Publisher: PEARSON
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Chapter B, Problem 10P
A
Summary Introduction
Interpretation: The service rate in the service system that would keep the average number of customers four should be calculated.
Concept Introduction: Waiting line model is used to calculate the performance. The probability in a waiting line requires to wait for service.
B
Summary Introduction
Interpretation: The probability that more than four customers are in the waiting line and being served is to be calculated.
Concept Introduction: Waiting line model is used to calculate the performance. The probability in a waiting line requires to wait for service.
C
Summary Introduction
Interpretation: Average waiting time in the line for each customer should be calculated.
Concept Introduction: Waiting line model is used to calculate the performance. The probability in a waiting line requires to wait for service.
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The daughter of the owner of a local hamburger restaurant is preparing to open a new fast-food restaurant called Hasty Burgers. Based on the arrival rates at her father’s outlets, she expects customers to arrive at the drive-up window according to a Poisson distribution, with a mean of 20 customers per hour. The service rate is flexible; however, the service times are expected to follow an exponential distribution. The drive-in window is a single-server operation.a. What service rate is needed to keep the average number of customers in the service system (waiting line and being served) to four?b. For the service rate in part (a), what is the probability that more than four customers are in line and being served?c. For the service rate in part (a), what is the average waiting time in line for each customer? Does this average seem satisfactory for a fast-food business?
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Chapter B Solutions
Operations Management: Processes And Supply Chains (12th Edition) (what's New In Operations Management)
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