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1) The following table shows the activities involved in purchasing a new car, with expected durations in days. a) Draw the project network, showing earliest start/finish time and latest start/finish times for each activity. b) Using your answer in (a), determine the critical path and expected project completion time. c) Assume that each the duration for each activity follows a beta distribution, with a variance of 0.15 for each. What is the probability that the project will take more than 25 days? d) Formulate this project completion as an LP problem. (Remember it has two parts.) e) Use Excel and Solver to determine the critical path and expected project completion time. Include both answer reports. Predecessor(s) Duration (days) A: B: D: E: F: G H: Activity Conduct feasibility study Find potential buyer for present car List possible models Research all possible models Conduct interview with mechanic Collect dealer propaganda Compile pertinent data Choose top three models Test-drive all three choices Gather warranty and financing data Choose one ear Choose dealer Search for desired color and options Test-drive chosen model once again Purchase new car 3 14 1 3 1 2 1 J: K: L: M: N: 0 D,E,F G H H 1. K L L B.MN 4 3 1) The following table shows the activities involved in purchasing a new car, with expected durations in days. a) Draw the project network, showing earliest start/finish time and latest start/finish times for each activity. b) Using your answer in (a), determine the critical path and expected project completion time. c) Assume that each the duration for each activity follows a beta distribution, with a variance of 0.15 for each. What is the probability that the project will take more than 25 days? d) Formulate this project completion as an LP problem. (Remember it has two parts.) e) Use Excel and Solver to determine the critical path and expected project completion time. Include both answer reports. Predecessor(s) Duration (days) A: B: D: E: F: G H: Activity Conduct feasibility study Find potential buyer for present car List possible models Research all possible models Conduct interview with mechanic Collect dealer propaganda Compile pertinent data Choose top three models Test-drive all three choices Gather warranty and financing data Choose one ear Choose dealer Search for desired color and options Test-drive chosen model once again Purchase new car 3 14 1 3 1 2 1 J: K: L: M: N: 0 D,E,F G H H 1. K L L B.MN 4 3

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