The table below shows the activities in a project and their pessimistic, most likely and optimistic durations and the expected time for each activity. Activity a m b   A 2 3 4 X B 5 6 7 6 C 5 6 7 6 D 3 4 5 4 E 2 3 4 3 F 3 4 5 4 G 9 11 16 Y   Work out the values of X and Y. The project has the following critical paths. DO NOT DRAW THE NETWORK DIAGRAMS. A-C-D-F C-D-E-F A-B-D-F Determine the completion time that the project manager should quote with a 90% certainty

Practical Management Science
6th Edition
ISBN:9781337406659
Author:WINSTON, Wayne L.
Publisher:WINSTON, Wayne L.
Chapter2: Introduction To Spreadsheet Modeling
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The table below shows the activities in a project and their pessimistic, most likely and optimistic durations and the expected time for each activity.

Activity

a

m

b

 

A

2

3

4

X

B

5

6

7

6

C

5

6

7

6

D

3

4

5

4

E

2

3

4

3

F

3

4

5

4

G

9

11

16

Y

 

  1. Work out the values of X and Y.
  2. The project has the following critical paths. DO NOT DRAW THE NETWORK DIAGRAMS.

A-C-D-F

C-D-E-F

A-B-D-F

Determine the completion time that the project manager should quote with a 90% certainty

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