Question: Activity a m b Immediate Predecessors average Variance time A 3 6 9 24 B C 6 8 7 D a Na N E F

Activity a m b Immediate Predecessors average Variance time A 3 6 9 24 B C 6 8 7 D a Na N E F 2 3 4 12 8 10 B CD A.E a) Compute average time and variance of each activity. (8 pts.) b) What is the probability that path C-E-F will be completed within 22 days. Compute the z value. I (7 pts.) c) What is the probability that path B-D-E-F will be completed within 21 days. Compute the z value. (7 pts.)

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