Question: Cost (S) Activity Predecessor Optimistic Normal Crash A B A B A D Time (weeks) Most probable Pessimistic 10 12 7 6 10 11 7

Cost (S) Activity Predecessor Optimistic Normal

Cost (S) Activity Predecessor Optimistic Normal Crash A B A B A D Time (weeks) Most probable Pessimistic 10 12 7 6 10 11 7 5 16 20 2 6 8 14 9 3 12 D E F Max. crash 2 2 3 1 2 0 30 000 120 000 100 000 40 000 50 000 60 000 70 000 150 000 160 000 50 000 75 000 4 Table Q3 (b) Project duration (weeks) Indirect costs ($) 34 500 000 33 450 000 32 400 000 31 350 000 30 300 000 29 250 000 28 200 000 Q3(a) Estimate the probability of completing the project at 28 weeks (6 marks) Q3(b) Determine the crashing decisions that you would recommend to NAPOT Sdn. Bhd. to meet the desired completion time at the least possible cost? For each move, identify what activity(s) was/were crashed, the adjusted direct cost, and explain your choice if you have to choose between activities that cost the same. (10 marks)

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