2. The activities needed to build an experimental chemical contaminant tracking machine at Charlie Cook Corp. are listed in the following table Activity Immediate Predecessor(S) Activity Time (days) A --- 6 B --- 7 C A 3 D A 2 E B 4 F B 6 G C, E 10 H D, F 7 Construct an AON network for the activities Cook would like you to determine ES, EF, LS, LF, and slack for each activity. The total project completion time and the critical path should also be determined.