3.17 Bill Fennema, president of Fennema Construction, has developed the tasks, durations, and predecessor relationships in the following table for building new motels. Draw the AON network and answer the questions that follow. Immediate Time Estimates (in weeks) Most Activity Predecessor(s) Optimistic Likely Pessimistic ABCD A 42 8 10. 8 *24 A 8 12 16 A 6 10 E B 1 2 3 F E, C 6 8 20 G E, C 2 3 4 t F 2 2 2 I F 6 6 J D, G. H 4 6 K I, J 2 2 023 6 C d) a) Determine the expected time for each activity. b) Determine the variance and standard deviation for each activity. c) Using the critical path A-C-F-H-J-K, determine the expected completion time for the project. d) Determine the variance and standard deviation for the project. e) What is the probability of completing the project in less than 40 weeks? f) What is the probability of completion of the project before week 36