Dave Fletcher was able to determine the activity times for constructing his laser scanning machine. Fletcher would like to determine ES, EF, LS, LF,...

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: