Use the information on the networks in Figure 11-19 to determine ES, LS, EF, and LF for all activities using time buffers (numbers on activities indicate duration in days). For Part

(a) use a 3-week time buffer for the critical path, a 1-week time buffer for every other path that connects to the critical path, and a project target completion time of 29 weeks. For Part

(b) use a 4-week time buffer on the critical path, a 2-week time buffer for every path that connects to the critical path, and a target completion of 45 weeks.

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O (b) AS A 3 0 9 B. 2 10 5 G 6 7 K 2 E H J 1 4 3 D 4 BA F D 2 E 8 v 9 H 8 3 K 91 6 2 M G 3 Figure 11-19 Two project networks. 7