Can you please solve the question in hand-writing?

5) Consider the PERT approach for the following problem (from Nahmias 6th ed, p. 532) Activity Immediate Predecessors 12 12 B,C D,E F,G a) Draw the activity-on-arc representation of the project network illustrating all precedence relations between activities. Assuming the most likely activity times (m) what is the critical b) Assuming that the critical path determined in part-(a) is valid what is the probability that the c) Assuming that the critical path determined in part-(a) is valid what is the probability that the d) Assuming that the critical path determined in part-(a) is valid how many weeks are path. projectwl be completed before 28 weeks. project will be completed before 32 weeks. necessary to complete the project with a probability of 0.95