I need a detailed explanation and assistance to solve this problem: A company decides to plan a project, with activities, precedences and random duration statistics given in the following table:   Activity Immediate Predecessors Duration Minimum (weeks) Duration Mode (weeks) Duration Maximum (weeks) A none 2 5 9 B A 1 6 8 C A 3 5 12 D B 2 4 12 E B, C 4 6 8 F B 6 7 8 G D, E 1 2 6 H F, G 4 6 16 * What method should be used?  Compute the mean and variances for each activity and add them to the table above * Draw the project network and label the arcs with the activity name. * Assuming that the critical path is AàBàP1àEàGàH, compute the probability that this path duration is between 28 weeks and 32 weeks. * Assuming that the critical path is AàBàP1àEàGàH, compute the number of weeks within which the project will be completed with probability 0.95.

Practical Management Science
6th Edition
ISBN:9781337406659
Author:WINSTON, Wayne L.
Publisher:WINSTON, Wayne L.
Chapter2: Introduction To Spreadsheet Modeling
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I need a detailed explanation and assistance to solve this problem:

A company decides to plan a project, with activities, precedences and random duration statistics given in the following table:

 

Activity

Immediate

Predecessors

Duration

Minimum

(weeks)

Duration

Mode

(weeks)

Duration

Maximum

(weeks)

A

none

2

5

9

B

A

1

6

8

C

A

3

5

12

D

B

2

4

12

E

B, C

4

6

8

F

B

6

7

8

G

D, E

1

2

6

H

F, G

4

6

16

* What method should be used?  Compute the mean and variances for each activity and add them to the table above

* Draw the project network and label the arcs with the activity name.

* Assuming that the critical path is AàBàP1àEàGàH, compute the probability that this path duration is between 28 weeks and 32 weeks.

* Assuming that the critical path is AàBàP1àEàGàH, compute the number of weeks within which the project will be completed with probability 0.95.

 

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