DATA FOR THE COMMUNITY CENTER PROJECT Normal Crash Time Cost ($) (days) Immediate Cost ($) Predecessor(s) Time Normal Crash Activity (days) START A 10 50 8 150 START В 4 40 2 200 START C 7 70 160 D 20 1 50 А, С E 3 30 3 30 А, С F 8 80 290 B G 50 4 180 D H 6 60 3 180 E, F FINISH G, H

Practical Management Science
6th Edition
ISBN:9781337406659
Author:WINSTON, Wayne L.
Publisher:WINSTON, Wayne L.
Chapter2: Introduction To Spreadsheet Modeling
Section: Chapter Questions
Problem 20P: Julie James is opening a lemonade stand. She believes the fixed cost per week of running the stand...
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You are in charge of a project at the local community center.
The center needs to remodel one of the rooms in time for the start of a new program. Delays in the project mean that the center must rent other space at a nearby church at additional cost. Time and cost data for your project are contained in the table. Your interest is in minimizing the cost of the project to the community center.
a. Using the normal times for each activity, what is the earliest date you can complete the project?
b. Suppose the variable overhead costs are $50 per day for your project. Also, suppose that the center must pay$40 per day for a temporary room on day 15 or beyond. Find the minimum-cost project schedule.

DATA FOR THE COMMUNITY CENTER PROJECT
Normal
Crash
Time
Cost ($) (days)
Immediate
Cost ($) Predecessor(s)
Time
Normal
Crash
Activity (days)
START
A
10
50
8
150
START
В
4
40
2
200
START
C
7
70
160
D
20
1
50
А, С
E
3
30
3
30
А, С
F
8
80
290
B
G
50
4
180
D
H
6
60
3
180
E, F
FINISH
G, H
Transcribed Image Text:DATA FOR THE COMMUNITY CENTER PROJECT Normal Crash Time Cost ($) (days) Immediate Cost ($) Predecessor(s) Time Normal Crash Activity (days) START A 10 50 8 150 START В 4 40 2 200 START C 7 70 160 D 20 1 50 А, С E 3 30 3 30 А, С F 8 80 290 B G 50 4 180 D H 6 60 3 180 E, F FINISH G, H
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