A project manager performs schedule planning using critical path method. The activities contained in the schedule are described with a table like this Your task: A.Create a network chart based on the table above b. Calculate Early Start, Early Finish, Late Start and Late Finish using Forward pass and backward pass assuming start date is 'O' (Zero) c. Describe the critical path in the network diagram above and calculate the duration of the project as a whole. d. Explain which activities have Total Float/Free Float and calculate the duration and explain what the float means. TASKA Aktivitas Aktivitas Pendahulu Durasi (Minggu) A None 5 B A 4 C A 7 D C 5 E B.D F CD 8 G E 8 5 H E 5 5 F.GH TASKB Referring to question A, the project manager seemed dissatisfied with the critical path method (CPM) and decided to calculate the schedule using the Evaluation Review Technique (PERT) program. All durations in weeks. Your job: a. Why isn't the project manager satisfied with using CPM? What are the advantages of PERT compared to CPM? b. Calculate the variance of each activity. c. If the project manager wants 3 weeks faster than the duration he calculates, how much probability can the duration be met? d. The project manager changes the probability of the duration of the project he estimates to 98%. Calculate how much the project duration is with that probability. E.. As does the project manager put the difference between the initial duration and the duration in item d.)? Activity opt most likely pessimistic A 5 6 4 B 4 5 8 C 3 3 7 11 D 3 5 7 E 2 3 4 F 6 8 10 G 4 8 12 H 3 5 7 4 4 5 6