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. Draw the project network and compute the earliest start, latest start, earliest finish, and latest finish time for each activity. upload your work. Task Immediate Predecessors Time (Weeks) A 3 B 1 C 2 A,B,C 4 E D 5 F A 3 G D,F 10 6 H E 4 Upload Choose a File Question 12 How long will it take to complete the roller coaster? 17 14 16 15 Question 13 What is the critical path? A-D-E-H B-D-E-H A-F-G C-D-G 5 pts 5 pts Compute the slack for each of all activities and enter them below: A O B2 C 1 DO E O F4 G 3 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?