OPERATIONS MANAGEMENT LOOSELEAF W/ CONN
14th Edition
ISBN: 9781264343898
Author: Stevenson
Publisher: MCG
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Chapter 17, Problem 15P
PRINTED BY: 92248ddb24ccbc6@placeholder.10274.edu. Printing is for personal, private use only. No part of this book may be reproduced or transmitted without publisher's prior permission. Violators will be prosecuted.
A construction project has indirect costs totaling $40,000 per week. Major activities in the project and their expected times in weeks are shown in this precedence diagram.
Crashing costs for each activity are:
a. Determine the optimum time–cost crashing plan.
b. Plot the total-cost curve that describes the least expensive crashing
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Image of Diagram included
Using the diagram, find:
The critical path.
How long it will take to complete the project?
How does simulation determine the probabilities of various project completion times?
What is "slack" and why is it important?
Why is activity-on-arrow (AOA) or activity-on-node (AON) of significant value to the project manager?
How is the uncertainty in project scheduling dealt with?
Should the critical path activities be managed differently from noncritical path activities? Explain.
Draw a network diagram showing the linkage between these activities from start to finish. For the diagram, each activity should be labelled alphabetically ie. A, B, C… etc.
PERT Formula:
TE = (O + 4T + P) / 6
TE = Pert Expected Time Duration,
O = Optimistic estimate,
P = Pessimistic estimate,
T = Most Likely (Typical) estimate
Activity
Predecessor
Optimistic
Most Likely
Pessimistic
Duration
Duration in Weeks
A
—
2
3
4
B
—
4
5
7
C
B
1
2
3
D
C & E
0.5
1
1.5
E
B
0.5
1
1.5
F
C
2
3
4
G
F
2
3
4
B/U
pe
Activity
A
B
D
11. A project has the activity duration and cost information indicated in the table where all
times are in weeks. There is a penalty of $4,000 per week for every week the project
exceeds 37 weeks. What is the lowest total cost for completing this project?
Predecessor Time
18
11
A
A
B
C
E
D
Normal
A
H
12
15
3
19
Asbe de ABC' AMBBC RACE AB
7
8
12
6
Normal
Cost
Crash Time Crash Cost
$22,000
$32,000
$62,000
$18,000
$35,000
$8,000
$23,000
$32,000
$56,000
$12,000 5
$18,000
19
$22,000
$9,000
$15,000
$5,000
$13,000
$20,000
$45,000
2
5
4
Chapter 17 Solutions
OPERATIONS MANAGEMENT LOOSELEAF W/ CONN
Ch. 17.3 - Will the AI technology render project managers...Ch. 17.3 - Prob. 1.2RQCh. 17 - A project manager may need two skill setsthose of...Ch. 17 - Explain the term project champion and list some...Ch. 17 - List the steps in risk management.Ch. 17 - Give some examples of ethical issues that may...Ch. 17 - What are the key advantages of using project...Ch. 17 - What is a work breakdown structure, and how is it...Ch. 17 - Identify the term being described for each of the...Ch. 17 - List the main advantages of PERT. List the main...
Ch. 17 - Why might a probabilistic estimate of a projects...Ch. 17 - Define each of these terms, and indicate how each...Ch. 17 - Why might a person wish to be involved with a...Ch. 17 - Prob. 12DRQCh. 17 - What are some aspects of the project managers job...Ch. 17 - What is the main benefit of a project organization...Ch. 17 - What trade-offs are associated with time and cost...Ch. 17 - Who needs to be involved in assessing the cost of...Ch. 17 - Prob. 3TSCh. 17 - Project management techniques have been used...Ch. 17 - Give three examples of unethical conduct involving...Ch. 17 - For each of the following network diagrams,...Ch. 17 - Chris received new word processing software for...Ch. 17 - Prepare a Gantt chart for each of the following in...Ch. 17 - a. Develop a list of activities and their...Ch. 17 - For each of the problems listed, determine the...Ch. 17 - PRINTED BY: 92248ddb24ccbc6@placeholder.10274.edu....Ch. 17 - Three recent college graduates have formed a...Ch. 17 - The new director of special events at a large...Ch. 17 - Prob. 9PCh. 17 - The project described in the following table is...Ch. 17 - The following precedence diagram reflects three...Ch. 17 - A project manager has compiled a list of major...Ch. 17 - Here is a list of activity times for a project as...Ch. 17 - The project manager of a task force planning the...Ch. 17 - PRINTED BY: 92248ddb24ccbc6@placeholder.10274.edu....Ch. 17 - Chucks Custom Boats (CCB) builds luxury yachts to...Ch. 17 - Prob. 17PCh. 17 - Create a risk matrix in the style of Figure 17.13...Ch. 17 - Create a risk matrix for this project: Explain...Ch. 17 - B. Smitty Smith is a project manager for a large...
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