Question: Given: Pessimistic 14 12 1.5 10 12 11 B E G Finish D Start F A C Determine: (a) the critical path. (b) the probability

Given: Pessimistic 14 12 1.5 10 12 11 B E G Finish D Start F A C Determine: (a) the critical path. (b) the probability that the project will be completed in 22 weeks. A small software development project has five major activities. The times are estimated and provided in the table below. Activity Immediate Predecessor A 2 5 S B 1 10 10 10 C A 4 7 10 D B 2 5 14 E C 3 3 3 (a) What is the expected completion time for this project? (b) What variance would be used in finding probabilities of finishing by a certain time? Development of a new deluxe version of a particular software product is being considered. The activities necessary for the completion of this are listed in the table below. Activity Normal Crash Normal Crash Immediate Time Time Cost Cost Predecessor 4 3 2000 2600 B 2 1 2200 2800 3 3 500 500 8 4 2300 2600 A 6 3 900 1200 B 3000 4200 C N N A W 1400 2000 DE (a) What is the project completion date? (b) What is the total cost required for completing this project on normal time? (c) If you wish to reduce the time required to complete this project by one week, which activity should be crashed, and how much will this increase the total cost

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