Problem #6-Time-Cost Trade-Off Analysis (12 Points) Given the precedence diagram below, perform the following: a. Perform forward and backward pass calculations to calculate Early Start (ES), Early Finish (EF), Late Start (LS), Late Finish (LF) and Total Float (TF) for all activities and identify the critical path. (2 points) b. Utilize the Least-Cost crashing solution to compress the schedule as much as possible. List the crashing steps on the provided table. How does this network compression affect the project schedule? How much total cost has been added to the project? (10 points) Activity Cost/Day Assuming the first activity starts at day 0 Part A Diagram: 5 3 2 B D E 3@500 1@200 1300 6 F A 20600 2@100 6 3 4 C G H 2@200 22400 2@450 3 3 1@500 Part B: Crashing Step Table Crashing Step 8 5 7 4 6 1 2 Activity to Crash Total # of Days Crashed # of Days Crashed SCost/Day Total Added Cost Added Cost Project Duration Step 1: 4 A 2@2100 5 B 3@500 6 2@200 D 1@200 G 2@400 2 E 1@300 6 F 2@600 4 H 2@450 Activity 3 1@500 Cost/ Day Step 2: 4 A 2@100 5 B 3@0500 6 C 2@200 3 2 D 1@200 1@300 6 3 G 2@400 F 22600 4 H 2@450 Activity J 1@500 Cost/Day