A firm hired to coordinate the release of the movie Goon (starring Jay Baruchel) identified 16 activities to be completed before the release of the film.
a) How many weeks in advance of the film release should the promoter have started its marketing campaign? What is the critical path? The tasks (in time units of weeks) are as follows:

b) If activities I and J were not necessary, what impact would this have on the critical path and the number of weeks needed to complete the marketing campaign?

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Most Immediate Optimist Likely Pessimistic Activity Predecessors Time Time Time A 1 B 3 3.5 4. 10 12 13 D 5 2 5 A. 6. G B 4. 5.5 Н 5 7.7 I 9.9 10 12 K D 2 2 F, G, H M 6. 6.5 J, K, L 1.1 2 I, M 5 N 5 9. 2. 4.