Practical Management Science
Practical Management Science
6th Edition
ISBN: 9781337406659
Author: WINSTON, Wayne L.
Publisher: Cengage,
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Can you help me with part B 

Recently, you were assigned to manage a project for your company. You have constructed a network diagram depicting the various activities in the project (shown below to the right). In addition, you have asked your team to estimate the
amount of time that they would expect each of the activities to take. Their responses are shown in the following table:
D
Q
Time Estimates (days)
Activity
Optimistic
Most Likely
645T
ABCD
7
Pessimistic
10
9
10
7
4
85
Start
Finish
ய
E
5
7
6
a. What is the expected completion time of the project?
The expected completion time is 18 days. (Enter your response as an integer.)
b. What is the probability of completing the project in 20 days? Refer to the standard normal table.
The probability of completing the project in 20 days is
(Enter your response rounded to four decimal places.)
a
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Transcribed Image Text:Recently, you were assigned to manage a project for your company. You have constructed a network diagram depicting the various activities in the project (shown below to the right). In addition, you have asked your team to estimate the amount of time that they would expect each of the activities to take. Their responses are shown in the following table: D Q Time Estimates (days) Activity Optimistic Most Likely 645T ABCD 7 Pessimistic 10 9 10 7 4 85 Start Finish ய E 5 7 6 a. What is the expected completion time of the project? The expected completion time is 18 days. (Enter your response as an integer.) b. What is the probability of completing the project in 20 days? Refer to the standard normal table. The probability of completing the project in 20 days is (Enter your response rounded to four decimal places.) a
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