Draw a network diagram showing the linkage between these activities from start to finish. For the diagram, each activity should be labelled alphabetically ie. A, B, C… etc.

Practical Management Science
6th Edition
ISBN:9781337406659
Author:WINSTON, Wayne L.
Publisher:WINSTON, Wayne L.
Chapter2: Introduction To Spreadsheet Modeling
Section: Chapter Questions
Problem 21P
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 Draw a network diagram showing the linkage between these activities from start to finish. For the diagram, each activity should be labelled alphabetically ie. A, B, C… etc.

  • PERT Formula:
  • TE = (O + 4T + P) / 6 
  • TE = Pert Expected Time Duration,
  • O = Optimistic estimate,
  • P = Pessimistic estimate,
  • T = Most Likely (Typical) estimate

Activity

Predecessor

Optimistic

Most Likely

Pessimistic

Duration

Duration in Weeks

 

A

2

3

4

 

B

4

5

7

 

C

B

1

2

3

 

D

C & E

0.5

1

1.5

 

E

B

0.5

1

1.5

 

F

C

2

3

4

 

G

F

2

3

4

 

 

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Question: what is the probability that the project will take less than 42 weeks ?( Show work/explain reasoning to receive full credit)

 

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