v : XVfx Gantt Chart Gantt Chart Reset Data Questions Activity Time Pred 1 Pred 2 Pred 3 A B 9 4 C 10 a 10 24 4 b 10 a Activity 35 4 C X C - IO TMO 40 d 15 a 4 1 e g h Project Time 69 weeks 0 20 40 60 80 Weeks Critical Noncritical Slackindicating the sequence in which they are to be performed. Activities A and B emanate from a start node because they have no immediate predecessors. The arrows connecting activity A to activities C, F, and I indicate that all three require completion of activity A before they can begin. Similarly, activity B must be completed before activities D and E can begin, and so on. Activity K connects to a finish node because no activities follow it. The start and finish nodes do not actually represent activities; they merely provide beginning and ending points for the network. Figure 7.2 Network Showing Activity Times for the St. John's Hospital Project 15 T 12 10 Finish Start 35 I 10 40 m 24