$. The activities for a project are summarized in the following table. Activity Duration Activity Duration Immediate Predecessor(s) Immediate Predecessor(s) (Weeks) (Weeks) N 5 G B 2 A N 4 H B 16 B N 10 I H 4 C N 7 . 8 D A 5 K I, J, L 5 E D G 3 L 9 F E 6 M J, L 10 a) Draw the network diagram and find the critical path and project completion time. b) Calculate float/ slack of the all activities. c) Can activity I be delayed without delaying the project completion time? If so, how many weeks? How much dollar can be saved by keeping the project completion time unchanged, if $2500 can be saved for each delayed week of activity ? d) What is the impact on the project if activity F needs a delayed time 2 weeks and extra time 5 weeks? e) The PM wants to delay the duration of the activity M from 10 weeks to 16 weeks. What is the impact on the project completion time