1. Consider the following network for a small maintenance project(all times are in days; network proceeds from node
1 to node 7):
|
Job Activity
|
Initial node
|
Final node
|
Optimistic Time
|
Pessimistic time
|
Most Likely Time
|
|
A
|
1
|
2
|
1
|
3
|
2
|
|
B
|
1
|
4
|
4
|
6
|
5
|
|
C
|
1
|
3
|
4
|
6
|
5
|
|
D
|
2
|
6
|
2
|
4
|
3
|
|
E
|
2
|
4
|
1
|
3
|
2
|
|
F
|
3
|
4
|
2
|
4
|
3
|
|
G
|
3
|
5
|
7
|
15
|
9
|
|
H
|
4
|
6
|
4
|
6
|
5
|
|
I
|
4
|
7
|
6
|
14
|
10
|
|
J
|
4
|
5
|
1
|
3
|
2
|
|
K
|
5
|
7
|
2
|
4
|
3
|
|
L
|
6
|
7
|
6
|
14
|
10
|
a) Draw an activity on node (AON) Network diagram representing the project.
b) What is the critical path and associated time?
c) What is the total slack time in the network?
If activity G had an estimated time of fifteen days, what impact would this have on your answer to part b?