A project has the following time estimates in weeks. Construct a PERT network, compute the project completion time, find critical activities and answer the following questions. m Activity 1+2 23 1 2 4 2 4 6 24 2 6 10 375 6 8 10 45 4 6 8 476 6 10 14 57 8 10 12 67 12 14 16 7-78 4 8 12 79 10 16 8710 2 4 6 910 6 10 14 Activities' Time Estimations 12 Questions: What is the expected activity times and variance of each activity? What is the critical path? What is the project completion time