Consider the scenario described in Prob. 10.8-3.
(a) To prepare for analyzing the effect of crashing, find the earliest times, latest times, and slack for each activity when they are done in the normal way. Also identify the corresponding critical path(s) and project duration.
(b) Use marginal cost analysis to determine which activities should be crashed and by how much to minimize the overall cost of the project. Under this plan, what is the duration and cost of each activity? How much money is saved by doing this crashing?
(c) Now use the linear programming approach to do part (b) by shortening the deadline 1 week at a time from the project duration found in part (a).