Activity Times (days) Activity Cost ($) Immediate Activity Predecessor 100 None 150 None 125 А D 175 E 2 150 F 4 200 С, D G 6. 75 H 50 C, D, E I 1 100 E J 4 75 D, E K 350 F, G 3 150 G, H, I M 4 400 I, J K, M Н, М N 4 175 1 200 150 N, L, O Draw the precedence network diagram.

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A plant is acquiring new production machinery. Before the machinery can be fully functional, a number of activities must be performed. The activities, their precedence relationships, and their durations are shown in the following table.   Days   Activity a m b Immediate Predecessors A 6 8 10 - B 4 5 6 - C 1 2 3 - D 8 18 28 A E 4 5 6 C F 7 8 9 B, D, E G 4 5 9 B, D, E H 12 13 14 F I 8 9 10 F J 4 5 6 G, H K 2 5 8 I, J L 1 2 6 G, H a) Develop a project network for this problem. b) Determine the expected duration and variance for each activity.  c) Determine the EST, EFT, LST, LFT, and slack for each activity. d) What is the critical path and project completion time?  e) What is the probability that the job will finish in 59 days or less? f) What is the probability that the job will finish in 54 days or more? g) Submit your…

Project Management Homework-Project Crashing Use the following scenario and data to answer all related questions. A community neighborhood association decided to add a swimming pool to the community activity center. The project is divided into the activities listed in the following table. The activity times and costs, both normal and crashed, are given. To finish the project before the summer season starts, the neighborhood has to make time and cost tradeoffs. If the project needs to be finished in 20 weeks, you are required to formulate a linear programming model to decide about how much to crash for each activity. Activity Immediate Predecesso Normal Gs) Cost (5) Cost (5) Crashed Normal Crashed A 4 2 800 1400 B A 5 2 3000 4200 C 6 4 2500 2800 D A, C 7 5 1600 2200 E B, C 5 2 1200 2100 F D 4 3 1300 2100 G E, F 5 3 8200 9000 To answer the following questions, you may want to use the last column of the following table to compute the cost of crashing an activity by one week. Immediate…

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