Question: PERT Activity Name Predecessor Optimistic Pessimistic Likely A 4 6 8 B A 5 7 15 C A 4 8 12 D B 15 20

PERT

Activity Name

Predecessor

Optimistic

Pessimistic

Likely

A

4

6

8

B

A

5

7

15

C

A

4

8

12

D

B

15

20

25

E

B

10

18

26

F

C

8

9

16

G

E

4

8

12

H

D, F

1

2

3

I

G, H

6

7

8

According to the above table,

  1. Find the critical Path
  2. Calculate the total project duration
  3. Calculate Project variance and standard deviation
  4. What is the probability of completion in 55 days
  5. What is the completion of the project with 0.90 chance

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