(Answered) : Consider the tasks, durations (in weeks), and predecessor relationships in the following network. TIME Earliest Earlies

Consider the tasks, durations (in weeks), and predecessor relationships in the following network.

TIME

Earliest

Earliest

Latest

Latest

Activity

Predecessor

Optimistic

Most Likely

Pessimistic

Expected

Var

Start

Finish

Start

Finish

Slack

A

–

5

6

7

B

–

8

8

11

C

A

6

8

16

D

–

9

12

15

E

C

5

6

13

F

D

5

6

7

G

F

2

3

7

H

B

4

4

5

I

H

5

7

8

J

E,G,I

2

3

4

Compute the expected times

Compute the activity variances

Draw the network

Compute the ES and EF

Determine the expected completion time

Compute the LF ands LS

Compute the activity slacks

Determine the critical path

What is the probability of completing on or before week 22? After week 26?

What week would you only have a 30% chance of completing by?

Expert Answer

Solution :

Compute the expected times, Compute the activity variances, Draw the network, Compute the ES and EF, Compute the LF ands LS,Compute the activity slacks, What is the probability of completing on or

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