Activity

Predecessor

Duration

Optimistic

Most Likely

Pessimistic

te

s2

s

Critical (Y/N)?

A

-

8

14

20

?

?

?

?

B

A

3

12

21

?

?

?

?

C

B

8

11

14

?

?

?

?

D

B

6

6

6

?

?

?

?

E

B

8

14

20

?

?

?

?

F

C, D

8

11

14

?

?

?

?

G

D

4

10

25

?

?

?

?

H

E, G

4

10

16

?

?

?

?

Part 1 - Complete the table by calculating the expected time, variance and standard deviation for every task. . Replace the "?" with your values.

Place a "Y" in the last column, if the activity is critical.

Place a "N" in the last column, if the activity is non-critical.

Part 2:

2.1. Expected Completion of this project is
2.2. Probability of finishing this project 10 days sooner is?
2.3 What is the target date with 75% probability of being met?