Question: 1. A construction company has a project proposal, which takes 8 activities as follows: Activity Duration Time (In DAYS) DAY(S) Activity Predecessors Optimistic Most Likely

1. A construction company has a project proposal, which takes 8 activities as follows: Activity Duration Time (In DAYS) DAY(S) Activity Predecessors Optimistic Most Likely Pessimistic Expected Duration (DAYS) Expected variance (DAY) ES EF LS LF SLACK A - OD 7 14 B - 8 10 12 2 3 4 D A 6 7 8 C,B 5 11 E F 5 6 CB 7 9 G E 4 6 8 H F 2 3 4 (a) Construct a CPMPERT Diagram and populate the empty columns in the above table. (1.4) (b) What is the critical path? (0.1) (c) What are the expected mean and expected variance of the duration for the entire project? (0.3) (d) Can activity B be delayed without delaying the completion of the project? (0.1+0.1) If the answer of part-c is NO, then which other activities can be delayed without delaying the completion of the project? If the answer of part-c is YES, then how many days activity B can be delayed without delaying the completion of the project

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