Project Management Homework-Project Crashing Use the following scenario and data to answer all related questions. A community neighborhood association decided to add a swimming pool to the community activity center. The project is divided into the activities listed in the following table. The activity times and costs, both normal and crashed, are given. To finish the project before the summer season starts, the neighborhood has to make time and cost tradeoffs. If the project needs to be finished in 20 weeks, you are required to formulate a linear programming model to decide about how much to crash for each activity. Activity Immediate Predecesso Normal Gs) Cost (5) Cost (5) Crashed Normal Crashed A 4 2 800 1400 B A 5 2 3000 4200 C 6 4 2500 2800 D A, C 7 5 1600 2200 E B, C 5 2 1200 2100 F D 4 3 1300 2100 G E, F 5 3 8200 9000 To answer the following questions, you may want to use the last column of the following table to compute the cost of crashing an activity by one week. Immediate Activity Predecesso Normal rs) Crashed Cost (5) Cost (5) Cost/Week Normal Crashed A 4 2 BOO 1400 B A 5 2 3000 4200 CDEFG 6 4 2500 2800 A, C 7 5 1600 2200 B, C 5 2 1200 2100 D 4 3 1300 2100 E, F 5 3 8200 9000 BONUS A constraint y < 2 in the model means Activity G should be finished within 2 weeks. The total time taken by activity G should not be more than 2 weeks. Activity G cannot be crashed by more than 2 weeks. Activity G must be finished within 2 weeks once started. None of the above.
Project Management Homework-Project Crashing Use the following scenario and data to answer all related questions. A community neighborhood association decided to add a swimming pool to the community activity center. The project is divided into the activities listed in the following table. The activity times and costs, both normal and crashed, are given. To finish the project before the summer season starts, the neighborhood has to make time and cost tradeoffs. If the project needs to be finished in 20 weeks, you are required to formulate a linear programming model to decide about how much to crash for each activity. Activity Immediate Predecesso Normal Gs) Cost (5) Cost (5) Crashed Normal Crashed A 4 2 800 1400 B A 5 2 3000 4200 C 6 4 2500 2800 D A, C 7 5 1600 2200 E B, C 5 2 1200 2100 F D 4 3 1300 2100 G E, F 5 3 8200 9000 To answer the following questions, you may want to use the last column of the following table to compute the cost of crashing an activity by one week. Immediate Activity Predecesso Normal rs) Crashed Cost (5) Cost (5) Cost/Week Normal Crashed A 4 2 BOO 1400 B A 5 2 3000 4200 CDEFG 6 4 2500 2800 A, C 7 5 1600 2200 B, C 5 2 1200 2100 D 4 3 1300 2100 E, F 5 3 8200 9000 BONUS A constraint y < 2 in the model means Activity G should be finished within 2 weeks. The total time taken by activity G should not be more than 2 weeks. Activity G cannot be crashed by more than 2 weeks. Activity G must be finished within 2 weeks once started. None of the above.
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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Transcribed Image Text:Project Management Homework-Project Crashing
Use the following scenario and data to answer all related questions.
A community neighborhood association decided to add a swimming pool to the community activity center.
The project is divided into the activities listed in the following table. The activity times and costs, both normal and crashed, are given.
To finish the project before the summer season starts, the neighborhood has to make time and cost tradeoffs.
If the project needs to be finished in 20 weeks, you are required to formulate a linear programming model to decide about how much to crash for each activity.
Activity
Immediate
Predecesso Normal
Gs)
Cost (5)
Cost (5)
Crashed
Normal
Crashed
A
4
2
800
1400
B
A
5
2
3000
4200
C
6
4
2500
2800
D
A, C
7
5
1600
2200
E
B, C
5
2
1200
2100
F
D
4
3
1300
2100
G
E, F
5
3
8200
9000
To answer the following questions, you may want to use the last column of the following table to compute the cost of crashing an activity by one week.
Immediate
Activity
Predecesso Normal
rs)
Crashed
Cost (5)
Cost (5)
Cost/Week
Normal Crashed
A
4
2
BOO
1400
B
A
5
2
3000
4200
CDEFG
6
4
2500
2800
A, C
7
5
1600
2200
B, C
5
2
1200
2100
D
4
3
1300
2100
E, F
5
3
8200
9000
Transcribed Image Text:BONUS
A constraint y < 2 in the model means
Activity G should be finished within 2 weeks.
The total time taken by activity G should not be more than 2 weeks.
Activity G cannot be crashed by more than 2 weeks.
Activity G must be finished within 2 weeks once started.
None of the above.
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