PRIN.OF OPERATIONS MANAGEMENT-MYOMLAB
11th Edition
ISBN: 9780135226742
Author: HEIZER
Publisher: PEARSON
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Chapter 3, Problem 28P
Summary Introduction
Case summary
To determine: The activities to be crashed and total crashing cost.
Introduction: In the activity on nodes (AON) project network diagram, the nodes denote activities and the arrows show only the precedence and succession sequence.
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The company decided that the project in the previous problem has to be expedited in order to optimize (minimize) the project cost. Expediting can be used to trade direct cost for indirect cost, since expediting the project reduces the indirect cost of the project by a fixed amount per day, while expediting an activity increases its total direct cost. The Accounting Department found that indirect costs amount to $100 per day, while activity direct costs as well as their normal and expedited times are given in the table below.
Activity
Normal
Time
(days)
Expedited
Time
(days)
Normal
Cost
($)
Expedited
Cost
($)
A
32
26
200
500
B
21
20
300
375
C
30
30
200
200
D
45
40
200
800
E
26
20
700
1,360
F
28
24
1,000
1,160
G
20
18
400
550
From this table you can compute the direct cost incurred by expediting an…
1. What’s the maximum amount of time that activity G can be delayed without delaying the whole project? (Whole number, no space, no commas, no decimal value).
2.What’s the maximum amount of time that activity A can be delayed without delaying the whole project? (Whole number, no space, no commas, no decimal value)
3. What’s the maximum amount of time that activity H can be delayed without delaying the whole project? (Whole number, no space, no commas, no decimal value)
1.What’s the maximum amount of time that activity F can be delayed without delaying the whole project? (Whole number, no space, no commas, no decimal value).
2. What’s the maximum amount of time that activity D can be delayed without delaying the whole project? (Whole number, no space, no commas, no decimal value).
3.What’s the maximum amount of time that activity C can be delayed without delaying the whole project? (Whole number, no space, no commas, no decimal value).
4. What’s the earliest expected time, in months, to finish the project? (Whole number, no space, no commas, no decimal value).
Chapter 3 Solutions
PRIN.OF OPERATIONS MANAGEMENT-MYOMLAB
Ch. 3 - Ethical Dilemma Two examples of massively...Ch. 3 - Give an example of a situation in which project...Ch. 3 - Explain the purpose of project organization.Ch. 3 - What are the three phases involved in the...Ch. 3 - What are some of the questions that can be...Ch. 3 - Define work breakdown structure. How is it used?Ch. 3 - What is the use of Gantt charts in project...Ch. 3 - What is the difference between an...Ch. 3 - What is the significance of the critical path?Ch. 3 - what would a project manager have to do to crash...
Ch. 3 - Prob. 10DQCh. 3 - Define earliest start, earliest finish, latest...Ch. 3 - Students are sometimes confused by the concept of...Ch. 3 - Prob. 13DQCh. 3 - Prob. 14DQCh. 3 - Would a project manager ever consider crashing a...Ch. 3 - How is the variance of the total project computed...Ch. 3 - Describe the meaning of slack, and discuss how it...Ch. 3 - How can we determine the probability that a...Ch. 3 - Name some of the widely used project management...Ch. 3 - What is the difference between the waterfall...Ch. 3 - The work breakdown structure (WBS) for building a...Ch. 3 - James Lawson has decided to run for a seat as...Ch. 3 - Prob. 3PCh. 3 - Refer to the table in Problem 3.3. a) Draw the AON...Ch. 3 - Draw the activity-on-node (AON) project network...Ch. 3 - Given the activities whose sequence is described...Ch. 3 - Prob. 7PCh. 3 - Roger Ginde is developing a program in supply...Ch. 3 - Prob. 9PCh. 3 - The activities described by the following table...Ch. 3 - Prob. 11PCh. 3 - The activities needed to build a prototype laser...Ch. 3 - Prob. 13PCh. 3 - Dave Fletcher (sec Problem 3.12) was able to...Ch. 3 - Ross Hopkins, president of Hopkins Hospitality,...Ch. 3 - A renovation of the gift shop at Orlando Amway...Ch. 3 - Kelle Carpet and Trim installs carpet in...Ch. 3 - The estimated times and immediate predecessors for...Ch. 3 - Prob. 21PCh. 3 - Four Squares Productions, a firm hired to...Ch. 3 - Prob. 23PCh. 3 - Prob. 24PCh. 3 - Prob. 25PCh. 3 - Prob. 28PCh. 3 - Prob. 29PCh. 3 - Prob. 30PCh. 3 - Development of Version 2.0 of a particular...Ch. 3 - Prob. 32PCh. 3 - Prob. 33PCh. 3 - Prob. 1.1VCCh. 3 - Prob. 1.2VCCh. 3 - Project Management at Arnold Palmer Hospital The...Ch. 3 - Prob. 1.4VCCh. 3 - Managing Hard Rocks Rockfest At the Hard Rock...Ch. 3 - Managing Hard Rocks Rockfest At the Hard Rock...Ch. 3 - Managing Hard Rocks Rockfest At the Hard Rock...Ch. 3 - Managing Hard Rocks Rockfest At the Hard Rock...
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