4. Given the data and information that follow, compute the total direct cost for each project duration. If the indirect costs for each project duration are $90 (15 time units), $70 (14), $50 (13), $40 (12), and $30 (11), compute the total project cost for each duration. What is the optimum cost-time schedule for the project? What is this cost? Act. Crash Normal Normal Maximum Crash Time Cost Time Cost (Slope) 30 1 5 50 B 60 2 3 60 C 0 0 4 70 D D 10 1 2 50 E 60 3 5 100 F 100 1 2 90 G 30 1 50 H 10 0 2 60 I 200 1 3 200 S730 F Initial project duration 15 4 2 5 D G - 2 5 3 B E H Total direct cost $730 3 5 2