Please explain in detail for each one (Excell if possible)

Ross Hopkins, president of Hopkins Hospitality, has developed the tasks, durations, and predecessor relationships in the following table for building new motels. Draw the AON net-work and answer the questions that follow. Time Estimates (in weeks) Activity Immediate Predecessor(s) Optimistic (a) Most Likely (m) Pessimistic (b) A 4 18 10 B A 2 8 24 C A 8 12 16 D 4 6 10 E B 1 2 3 IF E. C 6 8 20 G E, C 2 3 4 F 2 2 2 F 6 6 6 D, G, H 4 6 12 K 1,J 2 2 3 A. (4 points) Draw AON diagram of the project, including activity durations. B. (3 points) Based on the calculation of estimated times, what is the critical path? C. (3 points) What is the estimated time of the critical path? D. (5 points) What is the activity variance along the critical path? What is the probability of completion of the project before week 36