Below is a project by CPM
Draw the network diagram and state what is the critical path
What is the expected project completion time
Is there a chance that the project will take 17 weeks to complete
https://media.cheggcdn.com/media%2F79d%2F79ddcb4c-dadb-4ddd-a8aa-c5f0c1b2a791%2Fimage
Expert Answer
The expected time and variance of each activity are presented below :
ACTIVITY
OPTIMISTIC TIME( a)
NORMAL TIME (m)
PESSIMISTIC TIME ( b)
EXPECTED TIME , E = ( a + 4.m + b)/6
Variance = ( b – a)/36
J
4
4
5
4.17
0.03
K
1
3
6
3.17
0.69
L
1
2
3
2.00
0.11
M
2
3
4
3.00
0.11
N
3
4
11
5.00
1.78
O
3
4
5
4.00
0.11
P
1
4
6
3.83
0.69
Q
2
4
5
3.83
0.25
The precedence diagram of activities as follows :
OR
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