Stepl: Create a network diagram based on precedence relationship as shown below: 0 Create activities with no predecessors (A. B) on the left-hand side of the sheet. 9 Now, on the immediate right draw the activities having \"activities with no predecessors\" as their predecessors i.e. activity C and D and connect them using arrows, I Follow the same procedure for all activities to create a diagram as shown below: K / .~.__ 3\" "a! _/ a / . 'IIK. / a "a. wan-\"H. z/ \"\"- StepZ: Calculate the ES, EF, LS, LF and slack using the following formulas as shown below: E3 = Maximum (EF of immediate predecessors] EF = ES +t L8 = LF . t LF = Minimum (LS of immediately following predecessors) Slack=L S-ES 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) B C. E N H D , F Dave's earliest start (ES) and earliest finish (EF) are: Activity ES EF A 7 11 D 7 E 10 G 20 H 21 Dave's latest start (LS) and latest finish (LF) are: Activity LS LF H 14 DoomTo The slack times are; Activity Slack A B IOTMOO The activities on the critical path are The total project completion time for I B - E -G B - F - H A - D - H A - C - GDave 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 B B C, E D O N D. F Dave's earliest start (ES) and earliest finish (EF) are: Activity ES EF A 0 11 7 10 IOTMO 7 20 21 Dave's latest start (LS) and latest finish (LF) are: Activity LS LF H 14 G 12 F 08080000) Pooom The slack times are: Activity Slack A C D E H The activities on the critical path are The total project completion time for Dave = |weeks