4. Information about a project is given below. Answer the following questions based on the information. Normal Time Immediate Normal Crash time after Additional crashing Activity Time Cost (Week) crashing) cost predecessor (5) (Hafta) (5) 9 6000 3 5500 B 7 3000 2 2000 4 A,B 4000 3 300 D 5 A, B, E 5000 4 4000 E 6 6000 3 600 F 10 CD 8000 2 2000 6 F.H 4000 6 H 5 CD 15000 3 1000 a. Perform Critical Path Method on the below network diagram. (10 points) (If you do not answer this part, parts (b), (c), (d), (e), and (6) will not be graded.) A H b. What is the completion time of the project? (5 points) Which activities are critical activities? (5 points) d. Identify the critical path? (5 points) What is the total cost of the project? (5 points) If you need to complete the project one week earlier, which activity must be crashed? Why? (5