Chapter 4: Project Management (CPM & PERT TECHNIQUES) QUESTION 1 A network consists of the following list. Times are given in weeks. Preceding Activity A B C D E F G H I J K Duration 9 2 12 5 6 A A A B B CF t D H GI E, ] 3 2 8 6 2 a. Draw the network diagram. b. Which activities form the critical path? c. What is the duration of the project completion? QUESTION 2 A PERT problem is detailed in the table below. Times are given in weeks. Preceding Activity A B D E F G H I J K A A A B B CF D H GI E,J Optimistic Time 7 2 8 3 4 6 2 2 6 4 2 Probable Time/ Most likely time 9 2 12 5 6 8 3 2 8 6 2 Pessimistic Time 14 8 16 10 8 10 4 8 16 14 5 a. Calculate the expected time and ES, EF, LF, and LS of each activity. b. Draw diagram network for this project. c. What are the project variance and the project standard deviation? d. What is the estimated completion time? e. What is the probability of completion of the project after week 40