Draw a project network for this problem. Fill in all the blanks in the following table. Note: For variance (σ2) in activity time, keep two decimal places. Activity Expected Time t (weeks) Variance σ2 ES EF LS LF Slack Critical Path? A B C D E F G H I What is the expected time and variance to complete the project?
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The manager of the Oak Hills Swimming Club is planning the club’s swimming team program. The first team practice is
scheduled for May 1. The activities, their immediate predecessors, and the activity time estimates (in weeks) are as follows:
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Activity |
Optimistic |
Most Probable |
Pessimistic |
Immediate Predecessors |
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A |
1 |
2 |
3 |
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B |
4 |
6 |
8 |
A |
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C |
2 |
4 |
6 |
A |
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D |
1 |
2 |
3 |
B, C |
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E |
2 |
3 |
4 |
B |
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F |
1 |
2 |
3 |
A |
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G |
1 |
2 |
3 |
D |
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H |
1 |
2 |
3 |
G |
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I |
1 |
1 |
1 |
E, H, F |
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Draw a project network for this problem.
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Fill in all the blanks in the following table.
Note: For variance (σ2) in activity time, keep two decimal places.
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Activity |
Expected Time t (weeks) |
Variance σ2 |
ES |
EF |
LS |
LF |
Slack |
Critical Path? |
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A |
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B |
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C |
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D |
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E |
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F |
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G |
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H |
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I |
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What is the expected time and variance to complete the project?
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If the club manager plans to start the project on February 1, what is the probability the swimming program will be ready by the scheduled May 1 date (13 weeks)?
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Suppose activity E were delayed for 4 weeks. By how much would the entire project be delayed?
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