.. 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 5.0 A D 6.0 B, C B, C E 4.5 7.7 D F G 4.0 E, F a) Draw the project network using AON. b) Identify the critical path. c) What is the expected project length? d) Draw a Gantt chart for the project. Px 3.10 The activities described by the following table are given for the Howard Corporation in Kansas: IMMEDIATE PREDECESSOR(S) ACTIVITY A B TIME 9 7 A A 3 3 6 D B 09 E B 9 F 4 G E, F 6 H D 5 1 G H 3 a) Draw the appropriate AON PERT diagram for J.C. Howard's management team. b) Find the critical path. c) What is the project completion time? PX