CHAPTER 3 PROJECT MANAGEMENT 95 the A) 3.9 Task time estimates for the modification of an assembly line at Jim Goodale's Carbondale, Illinois, factory are as follows: ACTIVITY TIME (IN HOURS) 60 IMMEDIATE PREDECESSORS A B 72 5.0 60 A D B, C B, C E 45 7.7 D F G 40 EF 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 the following table af