One of the firm's existing projects needs to be completed earlier than planned. Use the following data and the critical path and PERT methods to answer the questions that follow.
|
Activity
|
Immediate Predecessors
|
|
Times in Days
|
|
|
a
|
m
|
b
|
|
A
|
None
|
1
|
3
|
5
|
|
B
|
None
|
1
|
2
|
3
|
|
C
|
A
|
1
|
2
|
3
|
|
D
|
A
|
2
|
3
|
4
|
|
E
|
B
|
3
|
4
|
11
|
|
F
|
C, D
|
3
|
4
|
5
|
|
G
|
D, E
|
1
|
4
|
6
|
|
H
|
F, G
|
2
|
4
|
5
|
- Draw the network.
- Describe the critical path.
- Analyze and explain what is the estimated completion time using the CPM approach.
- Analyze and explain what is the estimated completion time using the PERT approach.