G E, F 6. 11 16 a. Construct the PERT network diagram for this project. b. Compute the mean and variance in time for each activity c. Find the critical path and determine the expected length of the critical path?

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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Solve the following problem using PERT or CPM.

4. Consider the project information in the table (time in weeks)
Activity
Immediate
b
Predecessor
A
10
15
A
11
15
19
A
13
17
21
В, С
14
16
21
E
18
22
D
9.
13
17
G
E, F
11
16
a. Construct the PERT network diagram for this project.
b. Compute the mean and variance in time for each activity
c. Find the critical path and determine the expected length of the critical path?
d. Assuming normality and path independence, what is the probability of meeting the 72-week
deadline?
Transcribed Image Text:4. Consider the project information in the table (time in weeks) Activity Immediate b Predecessor A 10 15 A 11 15 19 A 13 17 21 В, С 14 16 21 E 18 22 D 9. 13 17 G E, F 11 16 a. Construct the PERT network diagram for this project. b. Compute the mean and variance in time for each activity c. Find the critical path and determine the expected length of the critical path? d. Assuming normality and path independence, what is the probability of meeting the 72-week deadline?
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