Dave Fletcher was able to determine the activity times for constructing his laser scanning machine. Fletcher would like to determine​ ES, EF,​ LS, LF, and slack for each activity. The total project completion time and the critical path should also be determined. Here are the activity​ times:                                                                                                                                Activity Time​ (weeks) Immediate​ Predecessor(s) Activity Time​ (weeks) Immediate​ Predecessor(s) A 7 − E 4 B B 6 − F 5 B C 4 A G 10 C, E D 2 A H 8 D​ , F Part 2 ​Dave's earliest start​ (ES) and earliest finish​ (EF) are:               Part 3       Part 4       Part 5       Part 6       Part 7       Part 8       Part 9       Part 10 ​Dave's latest start​ (LS) and latest finish​ (LF) are:               Part 11       Part 12       Part 13       Part 14       Part 15       Part 16       Part 17       Part 18 The slack times​ are:           Part 19     Part 20     Part 21     Part 22     Part 23     Part 24     Part 25     Part 26 The activities on the critical path are B - E - G   . Part 27 The total project completion time for Dave​ =   enter your response here weeks.

The following estimates of activity times (in days) are available for a small project: Activity     Optimistic         Most Probable                       Pessimistic A                          4                       5.0                                      6 B                          8                       9.0                                     10 C                          7                       7.5                                      11 D                          7                        9.0                                     10 E                           6                       7.0                                       9 F                           5                        6.0                                       7   Compute the expected activity completion times and the variance for each activity. An analyst determined that the critical path consists of activities B-D-F. Compute the expected project completion time and the variance of this path.

Dave Fletcher was able to determine the activity times for constructing his laser scanning machine. Fletcher would like to determine ES, EF, LS, LF, and slack for each activity. The total project completion time and the critical path should also be determined. Here are the activity times: Activity A B C D Time (weeks) 7 6 2 2 Dave's earliest start (ES) and earliest finish (EF) are: Time Immediate Predecessor(s) Activity (weeks) E 4 6 10 6 A A Activity A B ES 0 0 F G H EF 7 Immediate Predecessor(s) B B C, E D, F

Activities, preceding activities, normal and crashed completion times of each of the activities and crashed costs of activities per week of a project are given in the following table. Activity Preceding Activity Crashed Completion time (week) Normal Crashed Cost Completion Time (week) 7 per week A 7 6. 5 $500 $700 $600 $800 $400 C A 4 3 A, C В, D D, E D 9 E 10 9. F 9 II. Find the slack time of each of the activities and the critical activities. Find the minimum possible completion time of the project by considering the crashed completion times and the minimal total cost of crashing the project. iv.