Operations Management
13th Edition
ISBN: 9780135173626
Author: HEIZER, Jay, RENDER, Barry, Munson, Chuck
Publisher: Pearson,
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Chapter D, Problem 17P
a)
Summary Introduction
To determine: The service factor for the system.
Introduction: The mathematical study which analyses the causes of delay in the waiting line is known as queuing theory. The theory examines all components in the waiting line such as arrival process, service process, and number of servers, system and customers.
b)
Summary Introduction
To determine: The average number machines in service and available for drilling.
c)
Summary Introduction
To determine: The impact on machine when second technician is added.
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Question 3
[Soalan 31
Jeruk Pak Abu's Store in Butterworth, Pulau Pinang, maintains a successful
catalog sales department in which a clerk takes orders by telephone. If the clerk is
occupied on one line, incoming phone calls to the catalog department are
answered automatically by a recording machine and asked to wait. As soon as the
clerk is free, the party who has waited the longest is transferred and serviced first.
Calls come in at a rate of about 12 per hour. The clerk can take an order in an
average of 4 minutes. Calls tend to follow a Poisson distribution, and service
times tend to be negative exponential. The cost of the clerk is RM10 per hour, but
because of lost good -will and sales, Jeruk Pak Abu's Store loses about RM25 per
hour of customer time spent waiting for the clerk to take an order.
[Kedai Jeruk Pak Abu di Butterworth, Pulau Pinang, mempunyai bahagian penjualan katalog
yang berjaya di mana seorang kerani mengambil pesanan melalui telefon. Sekiranya kerani itu
sibuk…
Question related to gueing theory don't copy
Machines fail at 4 per hour and the cost of non-productive machine is Rs. 282 per hour.
A repairman charges Rs. 100 per hour and repairs at 7 per hour. What will be the total
queuing costs per hour? Assume M/M/1 queuing system.
Question PRODUCTIVITY POTENTIAL
Question 1
COSMOS is engaged in printing operations involving two major companies. The company
reproduces many copies for each job. The time it takes to reproduce and bind each copy
depends on the number of pages, among other factors. The company works 250 days a year,
8 hours a day. The company's management believes that a capacity cushion of 15% is ideal.
Customer A
Customer B
Monthly demand (copies)
Production time
(hours/copy)
Average copy size (pages
per copy)
Preparation time (hours)
2000
0.5
20
0.25
6000
0.7
30
0.40
The point:
Based on the information given in the table below, calculate how many machines the
company needs to have. Make a critical evaluation of your decision.
Chapter D Solutions
Operations Management
Ch. D - Prob. 1DQCh. D - Prob. 2DQCh. D - Question 3. Name the three factors that govern the...Ch. D - Prob. 4DQCh. D - Prob. 5DQCh. D - Prob. 6DQCh. D - Prob. 7DQCh. D - Prob. 8DQCh. D - Prob. 9DQCh. D - Question 10. Describe the behavior of a waiting...
Ch. D - Question 11. Discuss 1he likely outcome of a...Ch. D - Prob. 12DQCh. D - Prob. 13DQCh. D - Prob. 14DQCh. D - Question 15. What happens if two single-server...Ch. D - Prob. 16DQCh. D - Prob. 17DQCh. D - Prob. 1PCh. D - Prob. 2PCh. D - Question D.3 Paul Fenster owns and manages a...Ch. D - Prob. 4PCh. D - Prob. 5PCh. D - Prob. 6PCh. D - Question D.7 Automobiles arrive at the...Ch. D - Question D.8 Virginias Ron McPherson Electronics...Ch. D - Question D.9 Neve Commercial Bank is the only...Ch. D - Question D.11 Bill Youngdahl has been collecting...Ch. D - Question D.12 The wheat harvesting season in the...Ch. D - Prob. 13PCh. D - Prob. 14PCh. D - Prob. 15PCh. D - Prob. 16PCh. D - Prob. 17PCh. D - Question D.19 One mechanic services 5 drilling...Ch. D - Prob. 20PCh. D - Prob. 21PCh. D - Prob. 22PCh. D - Prob. 23PCh. D - Prob. 24PCh. D - Prob. 18PCh. D - Prob. 25PCh. D - Prob. 26PCh. D - Prob. 27PCh. D - Prob. 28PCh. D - Prob. 29PCh. D - Prob. 30PCh. D - Prob. 31PCh. D - Prob. 33PCh. D - Question New England Foundry For more than 75...Ch. D - Prob. 1.2CSCh. D - New England Foundry For more than 75 years, New...Ch. D - Question The Winter Park Hotel Lori Cook, manager...Ch. D - Question The Winter Park Hotel Lori Cook, manager...
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- Question in imagearrow_forwardQuestion 3.1 Kim's Convenience store has a variable demand. On a given day, demand ranges from 270 to 330 customers a day who average purchasing 5 items each. The average daily demand is 300 customers. The convenience store currently operates 12 hours a day. Each order takes approximately 2 minutes. Required What is the average customer waiting time, in minutes? What is the cycle time for an order? What is the waiting time if the average daily demand remains at 300 customers?arrow_forwardQUESTION 10 MM2 has a queuing problem where customers who line up to pay their selections form the waiting line. The MM2 system consists of an arrival rate of 3 per hour according to a Poisson distribution, and service times are on average equal to 16 minutes per customer. What is the number of customers waiting in the queue on average? O&1.333 Ob.4.0 Oc.0.952 Od32 O.0.152arrow_forward
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