Problem 7-21
H
A
D
Activity Pred
Optim
time (a)
Most likely
time (m)
Pessim
time (b)
Expected
time
Variance
Standard
deviation
EST EFT LST LST Slack Critical?
A – 3 7 14 7.50 3.36 1.83 0.00 7.50 2.50 10.00 2.50 N
B – 5 10 15 10.00 2.78 1.67 0.00 10.00 0.00 10.00 0.00 Y
Problem 7-21