Question 2: Consider the following project tasks and their identified best, likely, and worst-case estimates of task duration. Assume the organization you work for computes TE based on the standard formula. Activity Preceding activities Best Likely Worst A 12 15 25 B 4 6 11 12 12 30 D B, C 15 20 E A 12 15 F E 9 42 G D, E 17 19 H F 10 15 I G 13 20 J G, H 3 6 K J, I 12 22 8 7 9 13 5 11 2 8 a. Calculate each activity TE (rounding to the nearest integer). b. Using AON notation, carryout both a forward and backward pass. c. What is the estimated total duration for the project? d. Identify all paths through the network. e. Which is the critical path? f. Which activities have slack time? g. Identify all burst activities and merge activities. h. Now, assume that activity E has taken 10 days past its anticipated duration to complete. What happens to the project's schedule? Has the duration changed? Is there a new critical path? Show your conclusions