A network consists of the following list. Times are given in weeks.
Activity Preceding Optimistic Probable Pessimistic
A -- 5 11 14
B - 3 3 9
C -- 6 10 14
D A, B 3 5 7
E B 4 6 11
F C 6 8 13
G D, E 2 4 6
H F 3 3 9
a. Draw the network diagram.
b. Calculate the expected shortest duration of each path.
c. Calculate the expected probable duration of the critical path.
d. Calculate the pessimistic duration of the critical path.