Only the techniques that you have learned in the course will be accepted. Activity name, immediate predecessor, optimistic, most likely and pessimistic times for activities are given above. a) Draw the project network using Activity-on-Arrow technique. b) What is the total project duration? c) What is/are the critical path(s)? d) What would the project duration need to be such that we have a 95% probability of completing the project in that amount of time