Question: 3. Consider a PERT network involving six tasks or activities (A to F), as follows: Task/Activity Predecessor Expected Task Duration (days) 30 A Duration Variance

3. Consider a PERT network involving six tasks or activities (A to F), as follows: Task/Activity Predecessor Expected Task Duration (days) 30 A Duration Variance (days) 25 A B 40 64 C A 60 81 D B E 25 45 20 B, C DE 36 F 9 (a) Construct the project network using activity-on-arrow (AOA) method. (b) Determine the expected completion time of the project. (c) What is the probability that the project will be completed in 165 days

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