The following table provides the information necessary to construct a project network and project crash data: The project variance is 3.111 weeks. a) Find the probability of completion of the project before week 35. (3 marks) b) Find the due date that gives the project a 90% chance of on-time completion. ( 2 marks) c) If you wish to reduce the time required to complete this project by 3 weeks, which activity should be crashed, and how much will this increase the total cost? ( 2 marks) d) If you wish to further reduce the time required to complete by one more week, which activity should be crashed, and how much will this increase the total cost? ( 2 marks)