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A partially solved PERT problem is detailed in the table below. Times are given in v Activity Preceding Optimistic Probable Pessimistic Expected Variance Time Time Time Time A 7 14 9.5 1.361 -- B A 8 3 C A 8 12 16 12 D A 3 5 10 7.166 1.361 E B 4 8 F 8. 10 8. G C, F 2 3 4 3 H 8 3 1.000 I H 8 16 8.333 2.778

A partially solved PERT problem is detailed in the table below. Times are given in v Activity Preceding Optimistic Probable Pessimistic Expected Variance Time Time Time Time A 7 14 9.5 1.361 -- B A 8 3 C A 8 12 16 12 D A 3 5 10 7.166 1.361 E B 4 8 F 8. 10 8. G C, F 2 3 4 3 H 8 3 1.000 I H 8 16 8.333 2.778

Practical Management Science
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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A partially solved PERT problem is detailed in the table below. Times are given in wee Activity Preceding Optimistic Probable Pessimistic Expected Variance Time Time Time Time 14 8 А 7 9 9.5 1.361 -- B A 2 3 C A 8 12 16 12 D A 5 10 7.166 1.361 E B 4 6. 8 6. F В 8 10 8 C, F 2 3 4 3 H 2 8 3 1.000 I H 8 16 8.333 2.778 G, I Е, J J 4 14 7 2.778 K 5 2.666 0.250 N6
Transcribed Image Text:A partially solved PERT problem is detailed in the table below. Times are given in wee Activity Preceding Optimistic Probable Pessimistic Expected Variance Time Time Time Time 14 8 А 7 9 9.5 1.361 -- B A 2 3 C A 8 12 16 12 D A 5 10 7.166 1.361 E B 4 6. 8 6. F В 8 10 8 C, F 2 3 4 3 H 2 8 3 1.000 I H 8 16 8.333 2.778 G, I Е, J J 4 14 7 2.778 K 5 2.666 0.250 N6
d. What are the project variance and the project standard deviation? e. What is the probability of completion of the project before week 40?
Transcribed Image Text:d. What are the project variance and the project standard deviation? e. What is the probability of completion of the project before week 40?
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