1. The R&D department is planning to bid on a large project for the development of a new communications system for commercial planes. The accompanying table shows the activities, times, and sequences required: АсTIVITY IMMEDIATE PREDECESSOR TIME (WEEKS) A 3 - B A 2 A 4 D A 4 E В 6. C, D D, F F 6. 2 3 E, G, H 3 a. Draw the network diagram. b. What is the critical path?

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 Use excel to answer the following; 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.

Application 2- PERT For the following problems, diagram and then show ES, EF, LS, LF, and slack on a separate table. 7. Duration Activities Predecessors 14 --. 15 4 8. C A, B А, В 1 8. 15 D 9. 9. 26 F 1 2 C 4 11 H. D 7 11 40 I G, H Е, F I, J 3 J. 5 5 K 5 13

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…