Activity Optimistic Most likely Pessimistic Predecessor Time(days) Time (days) Time (days) 20 25 35 7 15 B 17 18 A ANYWOOW 10 13 D C. E UIN B a) Please draw an activity-on-node network diagram for the project above, including the estimated time for each activity b) What is the critical path, expected duration, and variance of the project? c) Using the expected times you calculated, which activities have slack and how much? d) What are the chances that you can finish this project in 56 days? e) If I gave you an extra resource (say 3 person-days of work) what would you do with it