Question: 12. A PERT diagram is shown below with the optimistic, most likely, and pessimistic times, in days, shown above each arrow. a. Find , for

12. A PERT diagram is shown below with the optimistic, most likely, and pessimistic times, in days, shown above each arrow.

a. Find ¢, for each activity.

b. Find the slack for each event and find the critical path.

c. What is the expected completion time?

d. What is the probability that the critical path will be completed in 45 days or less?

3,5,7 20 20 10 8, 10, 13 5, 6, 8 9, 12,

3,5,7 20 20 10 8, 10, 13 5, 6, 8 9, 12, 15 30 4,7,11 50 60 6, 8, 10 7,9,12 6,7,9 3.4.5 90 100 4,6,12 6, 10, 15 6.9.11 4,6,8 10, 11, 14 8, 10, 15 40 70 80 110 120

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