Question 2: 25 points Consider the project described in the previous question where there are ve activities A, B, C, D and E. 1. We ask the engineers working on activity A to factor in uncertainty in activity times and to provide better estimates of the activity times. The engineers tell us that activity A takes 3 weeks 50% of the time and 5 weeks 50% of the time. How long does the project now take to complete (on average)? 2. We now also ask the engineers working on activity E to factor in uncertainty in activity times and to provide better estimates of the activity times. The engineers now tell us that activity E takes 2 weeks 50% of the time and 4 weeks 50% of the time time. How long does the project now take to complete (on average)? [ASSUME THAT BOTH ACTIVITY A AND ACTIVITY E ARE UNCERTAIN]