Given the activities whose sequence is described by the following table, draw the appropriate activity-on-arrow (AOA) network diagram.
ACTIVITY
|
IMMEDIATE PREDECESSOR(S)
|
TIME (DAYS)
|
A
|
-
|
5
|
B
|
A
|
2
|
C
|
A
|
4
|
D
|
B
|
5
|
E
|
B
|
5
|
F
|
C
|
5
|
G
|
E, F
|
2
|
H
|
D
|
3
|
I
|
G, H
|
5
|
a) Which activities are on the critical path?
b) What is the length of the critical path?