3.9 and 3.19

95 CHAPTER 3 PROJECT MANAGEMENT he A) 3.9 Task time estimates for the modification of an assembly line at Jim Goodale's Carbondale, Illinois, factory are as follows: TIME (IN HOURS) 6.0 IMMEDIATE PREDECESSORS ACTIVITY A B 7.2 C 5.0 A D 6.0 B, C B, C E 4.5 F 7.7 D G 4.0 E, F a) Draw the project network using AON. b) Identify the critical path. c) What is the expected project completion time? d) Draw a Gantt chart for the project. Px h.. he following table are offices, Peter Kelle has been very concerned with the amount of time it took to complete several recent jobs. Some of his workers are very unreliable. A list of activities and their optimistic comple- tion time, the most likely completion time, and the pessimistic he NON completion time (all in days) for a new contract are given in the Wha ..3.19 Kelle Carpet and Trim installs carpet in commercial ospitality ationship What netwo c) Wha of th d) If the is the less? e) If th is th less' f) Exp ishe the following table: TIME (DAYS) WEEKS) a b IMMEDIATE PREDECESSOR(S) ACTIVITY SSIMISTE 3 6 00 2 4 4 10 C 1 3 2 24 6 D 7 8 E 2 4 16 6 F 6 14 0 ... 3.2 custon undert agers (in da appro a) WI b) W BD . A, E F 10 2 6 1 4 3 H 3 9 1 10 11 12 20 J 14 16 G HI K 2 00 10 ACT a) Determine the expected completion time and variance for each activity. b) Determine the total project completion time and the critical path for the project. c) Determine ES, EF, LS, LF, and slack for each activity. d) What is the probability that Kelle Carpet and Trim will finish the project in 40 days or less? Px