Question 2. The project represents the activity sequence of the work that remains to be done. Table summarizes the activities and their three times (x: optimistic, m: most likely, y: pessimistic) estimates in weeks. Construct a PERT network and answer the following questions. 4. (5 points) Draw the AOA (Activity On Arrow) diagram with the help of table below. b. (5 points) What is the expected activity times and variance of each activity? C. (5 points) What is the critical path? d. (5 points) What is the project completion time? 6. (10 points) Find the probability that the project can be completed within a 32 weeks period Nodal Sequence The estimates (weeks) X my Activity A 1 1 4 7 B 1 6 NI IN 12 m. O 2 UD 5 00 2 3 24 5 13 475 F 6 De 16 4 6 N 5 5 14 537 3 4 5 3 2 697 2 3 SE 78 1 2 3