EBK OPERATIONS MANAGEMENT
12th Edition
ISBN: 8220100283963
Author: Stevenson
Publisher: YUZU
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Question
Chapter 18, Problem 5P
a.
Summary Introduction
To determine: The system utlization rate.
Introdution:
System utilization refers to percentage amount of capacity which is utilized or we can say that actual output divided by potential output. It is operational metric for business which indicate aggregate productive capacity.
b.
Summary Introduction
To determine: Average number of customer waiting
Introduction: Average number of customers in the system is the average number of system which is used for the production purpose.
c.
Summary Introduction
To determine: The average time customer waiting hours.
d.
Summary Introduction
To determine: Probability that both ambulances will be busy when a call comes in
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A small town with one hospital has two ambulances to supply ambulance service. Requests forambulances during non-holiday weekends average .45 per hour and tend to be Poisson-distributed.Travel and assistance time averages two hours per call and follows an exponential distribution.Find:a. System utilizationb. The average number of customers waitingc. The average time customers wait for an ambulanced. The probability that both ambulances will be busy when a call comes in
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while they wait. The restaurant manager has kept careful records of some
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minutes on average to serve a random customer. On average, the restaurant
served 120 customers on a given day. This restaurant is open from 9 AM to 9 PM
every day, and has a single service counter. If you want to help the manager
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Exponential Service Rate Model
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Constant Service Rate Model
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In an M/MA queueing system, the arrival rate is 4 customers per hour and the service rate is 6 customers per hour. If the service
process is automated (resulting in no variation in service times but the same service rate), what will be the resulting performance
measurements? (Round your answers to 3 decimal places.)
a. What is the utilization?
Utilization
b. What is the expected number of customers in the system (L)?
Number of customers
c. What is the expected waiting time (in hours) for the system (W)?
Waiting time(in hours)
d. What is the expected number of customers in the queue(La)?
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Chapter 18 Solutions
EBK OPERATIONS MANAGEMENT
Ch. 18 - Prob. 1DRQCh. 18 - Why do waiting lines form even though a service...Ch. 18 - Prob. 3DRQCh. 18 - Prob. 4DRQCh. 18 - What approaches do supermarkets use to offset...Ch. 18 - Prob. 6DRQCh. 18 - Prob. 7DRQCh. 18 - Prob. 8DRQCh. 18 - Prob. 9DRQCh. 18 - Prob. 1TS
Ch. 18 - Prob. 2TSCh. 18 - Prob. 3TSCh. 18 - Prob. 1CTECh. 18 - Prob. 2CTECh. 18 - Prob. 3CTECh. 18 - The owner of Eat Now Restaurant implemented an...Ch. 18 - Prob. 5CTECh. 18 - Prob. 1PCh. 18 - Prob. 2PCh. 18 - Prob. 3PCh. 18 - Prob. 4PCh. 18 - Prob. 5PCh. 18 - Prob. 6PCh. 18 - Prob. 7PCh. 18 - Prob. 8PCh. 18 - Prob. 9PCh. 18 - Prob. 10PCh. 18 - Prob. 11PCh. 18 - Prob. 12PCh. 18 - Prob. 13PCh. 18 - Prob. 14PCh. 18 - Prob. 15PCh. 18 - A priority waiting system assigns arriving...Ch. 18 - Prob. 17PCh. 18 - Prob. 18PCh. 18 - Prob. 1CQ
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