Question: Consider the project information in the table (time in weeks) Activity Immediate Predecessor a m b A -- 5 10 15 B A 11 15

Consider the project information in the table (time in weeks)

Activity

Immediate Predecessor

a

m

b

A

--

5

10

15

B

A

11

15

19

C

A

13

17

21

D

B, C

14

16

21

E

C

8

18

22

F

D

9

13

17

G

E, F

6

11

16
  1. Construct the PERT network diagram for this project.
  2. Compute the mean and variance in time for each activity
  3. Find the critical path and determine the expected length of the critical path?
  4. Assuming normality and path independence, what is the probability of meeting the 72-week deadline?

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