2. As a project manager you are asked to plan activities associated with a project of arranging a seminar in your university. A planning consultant has collected the following estimates (days) for optimistic (to), most likely (ton), and pessimistic (Cu) times for the associated activities. Activity to tm to 12 4 6 8 13 6 14 9 275 7 35 46 4 576 3 67 000 a 10 12 6 8 sop9b956 8 12 6 4 16 14 2 4 a. Draw an AOA network diagram and label each activity (10 marks) b. Compute activity time, path duration, critical path and project duration