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Peterson Pipeline Company wanted to schedule a pipeline construction project that was divided into the 13 activities listed below, along with their estimated times in days and predecessor activities: Time 2 4 4 Task name B C D E F G Predecessor(s) None A B A E | | | I 4 5 6 mm E 3 3 un www 1 3 5 2 F D, F F G H J I, KL 3 L M 1 Do the following: Task ES EF time LS LF b) Analyze your project's diagram and enter each task's ES, EF, LS, LF values in your diagram. c) What is the shortest time required to complete the project? d) Complete the table below with the results from your analysis. Critical (Y/N)? ES EF LS LF Slack Time 2 4 4 Task A B D E 4 | | F lm G H 4 5 6 3 3 3 5 2 3 1 1 J K | | w | TU L M e) What is the effect on the project completion time if: (1) Activity H takes 5 days instead of 3? or (2) Weather causes activity ) to take 6 days instead of 5? (3) Activity E is finished early in 4 days, instead of 5? (4) Activity D is completed in 3 days instead of 4? [Hint: the answer to (c) is 30 days.)