Please solve ASAP

Preceding activity Activity Optimistic time estimates (Weeks) Most Likely time estimates (Weeks) 5 Pessimistic time estimates (Weeks) A 3 6 B 2 4 A 4 6 6 7 8 D B 3 5 E A, C, D 5 7 10 a. Draw an AON diagram based on the activities and their relationships given in the table. (1.5 marks) b. Determine the expected time estimates for all the activities. (1.5 marks) c. Determine the expected length of the critical path and project (1 mark) d. Determine the total variance of the critical path. (1 mark) What is the probability that the project can be completed within 25 weeks? (1 mark) e. 5. Activity Preceding activity Normal Time Crash Time Cost to crash 3 6 A 5 $200 B 4 3 $300 A 6 5 $300 D B 5 4 $100 E A, C, D 7 $100 Project's budget per day $500 a. Draw an AON diagram and determine which activities are on the critical path, the length of the critical path, and the other paths. (2 marks) b. Develop a crashing schedule to show how the activities on the critical and other paths can be crashed. (2 Marks) c. After crashing the activities as per the crashing rules what will be the total crashing cost and duration of the project? (2 marks)