Question: Act Predecessor Optimistic Most likely Pessimistic a - 15 8 25 b - 15 8 20 c a, b 6 10 12 d c 18

Act Predecessor Optimistic Most likely Pessimistic a - 15 8 25 b - 15 8 20 c a, b 6 10 12 d c 18 24 26 e d 13 19 25 f d 12 18 23 g d 15 17 19 h fg 22 25 30 i e,h 11 15 17

4.1 Using the PERT formula calculate the time for each activity

4.2 Calculate the variance for each activity.

4.3 Construct the network diagram (Activity on Node)

4.4 Identify the critical path.

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