Three activities are candidates for crashing on a CPM network Activity details

Three activities are candidates for crashing on a cpm

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108.Three activities are candidates for crashing on a CPM network. Activity details are in the table below.ActivityNormal TimeNormal CostCrash DurationCrash CostA9 days$8,0007 days$12,000B5 days$2,0003 days$10,000C12 days$9,00011 days$12,000a. What is the crash cost per unit time for activity A?b. What is the crash cost per unit time for activity B?c. Which activity should be crashed first to cut one day from the project's duration; how much is added to project cost?d. Which activity should be the next activity crashed to cut a second day from the project's duration; how much is added to project cost?e. Assuming no other paths become critical, how much can this project be shortened at what total added cost? 59
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109.A network consists of the following list. Times are given in weeks.ActivityPrecedingOptimisticProbablePessimisticA--51114B-339C--61014DA, B357EB4611FC6813GD, E246HF339a.Draw the network diagram.b.Calculate the expected duration and variance of each activity.c.Calculate the expected duration and variance of the critical path.d.Calculate the probability that the project will be completed in less than 28 weeks. {AACSB: Analytic Skills} 60
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