Question: Six Flags Great America is constructing a new roller coaster. The project is scheduled to begin in the winter and they hope to have it

Six Flags Great America is constructing a new roller coaster. The project is scheduled to begin in the winter and they hope to have it ready for their busy summer season. The roller coaster planner has identified the following activities and their estimated times.

Task Immediate Predecessors Time (Weeks)
A - 3
B - 1
C - 2
D A,B,C 4
E D 5
F A 3
G D,F 6
H E 4

A. Draw the project network and compute the earliest start, latest start, earliest finish, and latest finish time for each activity.

B. How long will it take to complete the roller coaster?

C. What is the critical path?

D. What is the slack of all of the actvities, A,B,C,D,E,F,G, and H?

E. If the planner were to add extra resources to activity F so that it takes 2 weeks instead of 3 weeks, how long would it take to complete the roller coaster?

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