OPERATIONS MANAGEMENT IN THE SUPPLY CHAIN: DECISIONS & CASES (Mcgraw-hill Series Operations and Decision Sciences)
7th Edition
ISBN: 9780077835439
Author: Roger G Schroeder, M. Johnny Rungtusanatham, Susan Meyer Goldstein
Publisher: McGraw-Hill Education
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Textbook Question
Chapter 11, Problem 3P
A barbershop has the following demand for haircuts on Saturday, which is its busiest day of the week.
| Number of Haircuts | Probability |
| 20 | .1 |
| 25 | .3 |
| 30 | .4 |
| 35 | .1 |
| 40 | .1 |
- a. What is the average demand for haircuts on Saturday?
- b. If the capacity is 35 haircuts, what is the average utilization of the shop?
- c. If capacity is 35 haircuts, how much of a capacity cushion does it have?
- d. If it costs $50 per lost haircut due to customer dissatisfaction and $100 for each unit of capacity provided, how much capacity should be built to minimize costs?
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IIn a job shop, effective capacity is only 69 percent of design capacity, and actual output is 76 percent of effective output. What design capacity would be
needed to achieve an actual output of 13 jobs per week? What is its effective capacity?
a. The Design Capacity needed to achieve the required actual job outputs =Blank 1 (round to whole number)
b. The Effective Capacity needed to achieve the required actual job outputs = Blank 2 (round to whole number)
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Ex 5
Fitzsimmons & Fitzsimmons (2008) compare 2 capacity management strategies. Part of their
comparison is presented below:
Capacity plan: Level Capacity
Chase Demand
Customer waiting
Generally low
Moderate
High
Long run
Labour skill level
Low
Forecasting
Short run
a) Motivate why the forecasting horizon is longer for Level capacity plans.
b) Which assumption is used to reach the conclusion that a level capacity plan has a shorter
customer waiting time?
Party
O 6
3
1
2
3
4
5
6
7
8
9
10
00
Number
in Party
O 10
3
2
2
2
4
3
2
3
2
4
Arrival
Time
7:00
7:02
7:05
7:10
7:12
7:13
7:15
7:22
7:26
7.29
There is a single server that serves the entire customer party, no matter what the size, in the numbe
of minutes shown in the table above.
How many total customers in line and being served at 7:17am?
None of the answers are correct.
Service
Time
(minutes)
6
5
4
6
4
5
4
5
5
4
Chapter 11 Solutions
OPERATIONS MANAGEMENT IN THE SUPPLY CHAIN: DECISIONS & CASES (Mcgraw-hill Series Operations and Decision Sciences)
Ch. 11 - Prob. 1DQCh. 11 - Prob. 2DQCh. 11 - A school district has forecast student enrollment...Ch. 11 - Prob. 4DQCh. 11 - Prob. 5DQCh. 11 - SOP or aggregate planning sometimes is confused...Ch. 11 - The XYZ Company manufactures a seasonal product....Ch. 11 - Prob. 8DQCh. 11 - Every firm has multiple objectives such as good...Ch. 11 - Prob. 10DQ
Ch. 11 - Prob. 11DQCh. 11 - Suppose we are considering the question of how...Ch. 11 - The Ace Steel Mill estimates the demand for steel...Ch. 11 - A barbershop has the following demand for haircuts...Ch. 11 - Prob. 4PCh. 11 - Prob. 5PCh. 11 - eXcel The Chewy Candy Company would like to...Ch. 11 - A company produces to a seasonal demand, with the...Ch. 11 - Prob. 8PCh. 11 - Question: 9. The Restwell Motel in Orlando,...Ch. 11 - eXcel 10. The Ban go Toy Company produces several...Ch. 11 - A small textile company makes several types of...Ch. 11 - Valley View Hospital faces somewhat seasonal...
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