Question: 4. (16 Marks) ABC Construction Company has A project consists of 10 activities. Optimistic (a), most likely (b), and pessimistic (c) times of each activity

4. (16 Marks) ABC Construction Company has A

4. (16 Marks) ABC Construction Company has A project consists of 10 activities. Optimistic (a), most likely (b), and pessimistic (c) times of each activity and precedence relations are shown below: Activity Immediate predecessor(s) Time (weeks) Most likely Optimistic (a) Pessimistic (b) (m) 11 B 6 4 14 B A 3 7 2 2.5 2 3 6 7 2 3 2. 53 35 4 6 5 7 2 4 3.5 A,E C D ,G,H, 8 9 6 J F a. Draw the network diagram. b. Find mean completion time of the project. C. Find the standard deviation of the project completion time. d. Find the probability that the project will be completed in 25 weeks

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