Question: (b ). A E) F Start Finish B D Given the above project network and the table below with the estimates of the duration of

(b ). A E) F Start Finish B D Given the above

(b ). A E) F Start Finish B D Given the above project network and the table below with the estimates of the duration of each activity, using the PERT three-estimate approach. Activity B D E F Optimistic Estimate 12 15 12 18 12 2 Duration Most Likely Estimate 12 21 15 27 18 5 Pessimistic Estimate 12 39 18 36 24 14 Determine the (i). estimate of the mean and variance of the duration of each activity. (ii). the mean critical path. (ii). approximate probability that the project will finish within 57 days by using the mean critical path in (i). (iv). approximate probability that the project within 57 days using the other path through the project network. (v). approximate probability that the project will finish within 57 days. Justify the method used

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