TABLE 7.8 DATA FOR THE EQUIPMENT INSTALLATION PROJECT Activity Immediate Predecessor(s) Normal Time (weeks) Crash Time (weeks) Normal Cost ($) Crash Cost ($) A 1 7,000 10,000 B 3,000 3,000 A 3 1 12,000 40,000 D В 3 2 12,000 28,000 E 1 8,000 8,000 F D, E 3 5,000 15,000 G E 3 9,000 18,000

Practical Management Science
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ISBN:9781337406659
Author:WINSTON, Wayne L.
Publisher:WINSTON, Wayne L.
Chapter5: Network Models
Section5.3: Assignment Models
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Table 7.8 contains data for the installation of new equipment in a manufacturing process at Excello Corporation. Your company is responsible for the installation project. Indirect costs are $15,000 per week, and a penalty cost of $9,000 per week will be incurred by your company for every week the project is delayed beyond week 9.
a. What is the shortest time duration for this project regardless of cost?
b. What is the minimum total cost associated with completing the project in 9 weeks?
c. What is the total time of the minimum-cost schedule?

TABLE 7.8
DATA FOR THE EQUIPMENT INSTALLATION PROJECT
Activity
Immediate Predecessor(s)
Normal Time (weeks)
Crash Time (weeks)
Normal Cost ($)
Crash Cost ($)
A
1
7,000
10,000
B
3,000
3,000
A
3
1
12,000
40,000
D
В
3
2
12,000
28,000
E
1
8,000
8,000
F
D, E
3
5,000
15,000
G
E
3
9,000
18,000
Transcribed Image Text:TABLE 7.8 DATA FOR THE EQUIPMENT INSTALLATION PROJECT Activity Immediate Predecessor(s) Normal Time (weeks) Crash Time (weeks) Normal Cost ($) Crash Cost ($) A 1 7,000 10,000 B 3,000 3,000 A 3 1 12,000 40,000 D В 3 2 12,000 28,000 E 1 8,000 8,000 F D, E 3 5,000 15,000 G E 3 9,000 18,000
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