also needs daves latest start and latest finish:

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 e 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) C, E D, F Dave's earliest start (ES) and earliest finish (EF) are: Activity ES EF 21 7 EF S-6 1 96 15 9 04 8 1 1 2 tiv H G F E D C B A The slack times are: B-E-G B-F-H A-D H A-C-G The activities on the critical path are The total project completion time for Daveweeks