Q2. In the above question, the completion times of the activities BD and DE are on average 6 hours and 8 hours, respectively, and if the variances of the completion times of the same activities are 16 and 9 hours, respectively. a. What is the expected total completion time of the project? h What is the probability that the project will be completed in 20 hours in total?

Practical Management Science
6th Edition
ISBN:9781337406659
Author:WINSTON, Wayne L.
Publisher:WINSTON, Wayne L.
Chapter4: Linear Programming Models
Section: Chapter Questions
Problem 111P
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The tables below are actitvites slack times and number of workers required respectively.
A-B
B-D
D-E
A-D
B-E
B-C
C-E
T1. (slack)
A-D
B-E
B-C
C-E
T2. (workers)
3
23.
2
Transcribed Image Text:The tables below are actitvites slack times and number of workers required respectively. A-B B-D D-E A-D B-E B-C C-E T1. (slack) A-D B-E B-C C-E T2. (workers) 3 23. 2
Q2. In the above question, the completion times of the activities BD and DE are on average 6 hours
and 8 hours, respectively, and if the variances of the completion times of the same activities are 16
and 9 hours, respectively.
a. What is the expected total completion time of the project?
b. What is the probability that the project will be completed in 20 hours in total?
Transcribed Image Text:Q2. In the above question, the completion times of the activities BD and DE are on average 6 hours and 8 hours, respectively, and if the variances of the completion times of the same activities are 16 and 9 hours, respectively. a. What is the expected total completion time of the project? b. What is the probability that the project will be completed in 20 hours in total?
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