Operations Management: Sustainability and Supply Chain Management (12th Edition)
12th Edition
ISBN: 9780134130422
Author: Jay Heizer, Barry Render, Chuck Munson
Publisher: PEARSON
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Textbook Question
Chapter 3, Problem 3CS
TABLE 3.6 Southwestern University Project
3. If it is necessary to crash to 250 or 240 days, how would Hill do so, and at what costs? As noted in the case, assume that optimistic time estimates can be used as crash times.
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Normal
Time
Problem 1
You are the manager of a project to improve a billing process at your firm. The following table
contains the data you will need to conduct crashing of the project duration. Indirect costs are $1,600
per week, and penalty costs are $1,200 per week after Week 12.
Activity
Immediate
Predecessor(s)
Crash Time
(weeks)
Normal
(Direct) Cost
Crash
Cost
(weeks)
($)
($)
A
4
1
5,000
8,000
B
5
2
8,000
11,000
C
A
1
1
4,000
4,000
Ꭰ
B
6
3
6,000
12,000
E
B, C
7
6
4,000
7,000
F
Ꭰ
7
6
4,000
7,000
What is the optimum choice for project duration?
Activity
Predecessor
Activities
Normal
Crashed
Duration (Days)
Cost ($)
Duration
Cost ($)
KA
-
5
2000
3
5600
LB
-
7
3000
4
7800
MC
A
10
4000
7
6100
ND
AB
11
5000
8
8000
PE
B
6
2400
4
3600
RF
C
8
3000
6
5100
QG
C,D,E
4
4200
1
3000
SH
E,G
5
5500
3
2500
What is the ES for Activity G and and LS for activity F?
Consider the following activity description with associated cost data shown in Table 1. The cost data represents the total cost and should be considered linear with time.
Table 1: Crash Cost Table
Activity
Immediate Predecessor
Normal Duration (days)
Normal Cost ($)
Crash Duration (days)
Crash Cost ($)
A
---
5
50
3
150
B
---
4
40
2
200
C
B
7
70
5
250
D
A, C
2
20
1
50
E
A, C
5
125
1
525
F
B
10
80
7
290
G
D
7
50
3
250
H
E, F
6
60
3
180
Reduce the project duration to minimum duration and calculate the cost.
Note:-
Do not provide handwritten solution. Maintain accuracy and quality in your answer. Take care of plagiarism.
Answer completely.
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Chapter 3 Solutions
Operations Management: Sustainability and Supply Chain Management (12th Edition)
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 - Describe how expected activity times and variances...
Ch. 3 - Define earliest start, earliest Finish, latest...Ch. 3 - Students are sometimes confused by the concept of...Ch. 3 - What are dummy activities? Why are they used in...Ch. 3 - What are the three time estimates used with PERT?Ch. 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 - Prob. 20DQCh. 3 - The work breakdown structure (WBS) for building a...Ch. 3 - Prob. 2PCh. 3 - 3.8 The City Commission of Nashville has decided...Ch. 3 - Refer to the table in Problem 3.8. 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 - 3.5 Using AOA, diagram the network described below...Ch. 3 - Prob. 8PCh. 3 - Task time estimates for the modification of an...Ch. 3 - The activities described by the following table...Ch. 3 - The following is a table of activities associated...Ch. 3 - The activities needed to build a prototype laser...Ch. 3 - Dave Fletcher (see Problem 3.10) was able to...Ch. 3 - Prob. 16PCh. 3 - Prob. 17PCh. 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 - Rich Cole Control Devices, Inc., produces...Ch. 3 - Four Squares Productions, a firm hired to...Ch. 3 - Using PERT, Adam Munson was able to determine that...Ch. 3 - Assume that the activities in Problem 3.15 have...Ch. 3 - What is the minimum cost of crashing the following...Ch. 3 - Three activities are candidates for crashing on a...Ch. 3 - Development of Version 2.0 of a particular...Ch. 3 - Prob. 32PCh. 3 - TABLE 3.6 Southwestern University Project 1....Ch. 3 - TABLE 3.6 Southwestern University Project 2 What...Ch. 3 - TABLE 3.6 Southwestern University Project 3. If it...Ch. 3 - Project Management at Arnold Palmer Hospital Video...Ch. 3 - The equivalent of a new kindergarten class is born...Ch. 3 - The equivalent of a new kindergarten class is born...Ch. 3 - The equivalent of a new kindergarten class is born...Ch. 3 - At the Hard Rock Cafe, like many organizations,...Ch. 3 - At the Hard Rock Cafe, like many organizations,...Ch. 3 - At the Hard Rock Cafe, like many organizations,...Ch. 3 - At the Hard Rock Cafe, like many organizations,...
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