Operations Management: Processes and Supply Chains, Student Value Edition Plus MyLab Operations Management with Pearson eText -- Access Card Package (11th Edition)
Operations Management: Processes and Supply Chains, Student Value Edition Plus MyLab Operations Management with Pearson eText -- Access Card Package (11th Edition)
11th Edition
ISBN: 9780134111056
Author: Lee J. Krajewski, Manoj K. Malhotra, Larry P. Ritzman
Publisher: PEARSON
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Chapter B, Problem 4P

A

Summary Introduction

Interpretation: J’s utilization according to queuing method is to be determined.

Concept Introduction:

Queuing method is the best practice for enhancing the service provided within an organization by utilizing its resources.

B

Summary Introduction

Interpretation: The average number of machines repaired or waiting to be repaired are to be calculated.

Concept Introduction:

The waiting line model is used to calculate the performance. The probability in a waiting line requires waiting for the service.

C

Summary Introduction

Interpretation: The average time of a machine that is out of service is to be calculated.

Concept Introduction:

The waiting line is the time delay to reach the station and it improves the service channel. For completion of the activity, an object spends time waiting in line.

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Benny's arcade has six video game machines. The average time between machine failures is 50 hours. Jimmy, the maintenance manager can repair a machine in 5 hours on average. The machines have an exponential failure distribution, and Jimmy has an exponential service-time distribution. a. Jimmy's utilization is? b. what is the average number of machines out of service, that is, waiting to be repaired or being repaired? c. what is the average time a machine is out of service?.
Benny’s Arcade has six video game machines. The average time between machine failures is 50 hours. Jimmy, the maintenance engineer, can repair a machine in 15 hours on average. The machines have an exponential failure distribution, and Jimmy has an exponential service-time distribution.a. What is Jimmy’s utilization?b. What is the average number of machines out of service, that is, waiting to be repaired or being repaired?c. What is the average time a machine is out of service?
A copier is able to operate for an average of 200 hours between repairs, and the mean repair time is two hours. Determine the availability of the copier.

Chapter B Solutions

Operations Management: Processes and Supply Chains, Student Value Edition Plus MyLab Operations Management with Pearson eText -- Access Card Package (11th Edition)

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