A movie producer has decided to start the shooting of a new documentary and his project manager has set up a network diagram with the activity required. However, since a lot of them depend on other people’s schedule, they have decided to use estimates in order to calculate an optimistic

(A), a most likely (B), and a pessimistic outcome (C) in terms of required days.

Based on the table below, calculate the estimated time for each of the activities and construct a network diagram.

Task Predecessor A B C 1 4 7 10 2 1 2 10 24 3 1 8 12 16 4 1 4 9 14 5 1, 2 1 2 3 6 1, 2 6 8 22 7 1, 3 2 3 4 8 6 2 2 2 LO.1