Question: i need help with the question and to compute in to excel im not good with execl can you help me please? i have a

i need help with the question and to compute in to excel

im not good with execl can you help me please?

i have a macbook. && i just need help.

i need help with the question and to compute in

The estimated times (in weeks) and immediate predecessors for the activities in a project are given in the following table. Assume that the activity times are independent. IMMEDIATE ACTIVITY PREDECESSORS b 9 10 11 B 4 10 16 A 9 10 11 D B 5 8 11 a m (a) Calculate the expected time and variance for each activity. (b) What is the expected completion time of the critical path? What is the expected completion time of the other path in the network? (c) What is the variance of the critical path? What is the variance of the other path in the network? (d) If the time to complete path A-C is normally distributed, what is the probability that this path will be finished in 22 weeks or less? (e) If the time to complete path B-D is normally distributed, what is the probability that this path will be finished in 22 weeks or less? (f) Explain why the probability that the critical path will be finished in 22 weeks or less is not necessarily the probability that the project will be finished in 22 weeks or less

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