Question: please show work Please turn in the following problem. You must show the necessary calculations. Exercise 3 (PERT project scheduling) Activity Predecessors Optimistic Time (a)

please show work please show work Please turn in the following

Please turn in the following problem. You must show the necessary calculations. Exercise 3 (PERT project scheduling) Activity Predecessors Optimistic Time (a) Most Likely Time (m) Pessimistic Time (b) A 0.5 1 1.5 B A 2 4 5 A 2 3 6 D A 6 7 8 E B 4 6 7 F CD 1 2 2.5 G EF 6 7 9 H D 6 9 11 G H 2 4 A. Identify the critical path and determine the expected time to complete the project. B. Compute the variance of the critical path duration (cp). C. What is the probability that the project will be completed in 24 days or less? D. What is the probability that the project will be completed in 21 days or less? E. What is the probability that the project will be completed in 20 days or more

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