Construct a CPM network for the following set of activities, indicate the project completion time, compute slack for each activity, and determine the critical path. Use a node similar to the one below to represent each activity in the project. You may complete everything on a piece of paper and submit a picture of it. ES Activity EF name LS Activity time LF Activity Immediate Predecessor Time (weeks) A 3 B 3 C 4 A 3 E D 5 F B, E 2 G B, C, E 6 H 4 F G 4 J H, I 2