(a) Consider Table 1 that shows the schedule of testing activities of a software project. Activity ID Predecessor Duration (weeks) NONE A A B D ABCDE F G H I C.E F F G.H Table 1: Testing phase 5 3 10 3 5 6 8 1 5 (a.1) Draw a Gantt chart for the above project schedule. (a.2) Draw a PERT diagram for the above project schedule. (a.3) What is the earliest completion time for the project? (a.4) What is the Slack Time of each task and each event? (a.5) What is the critical path of the project? (a.6) What would happen to the project if task C was delayed by 3 weeks? [4] [8] [4] [2]