How long can noncritical path activities be delayed without jeopardizing the overall completion date for this project?

12-1 Using the information in table 12-7, construct a PERT network and answere each of the following question:a. What is the expected project completion date?b. What is the scheduled star and completion date for each activity?c. What activities are on the critical path?d. How long can noncritical path activities be delayed without jeopardizing the overall completion date for this project?12-2 Assess the impact of the following changes to the time estimates provided in question 12-1. Individual, what is the impact if:Activity Predecessor 1Collectively, what is the impact of these changes?12-3 Project manager for the example included in question 12-, what would you recommend preserve the original project completion due if activity A was reestimated to take 8 weeks, not the original 4 weeks?Provide details.12-4 Develop a WBS and PERT network with no more then 20 activities for each of the following projects.A Buying a car B Screening 1000 school-age children for high blood pressure and reporting the results to the child’s physician.Exercises13-1 A representative of a reputable financial services company has approached you as manager of a four-person group of anesthesiologists with an opportunity to purchase a 10 -year annuityDue for each member of group.The annuity due would pay $40,000 each year beginning 5 years from now (i.e., at time =). What is most you would be willing to pay now, each physician, for this investment? Assume an appropriate discount rate of 70%.13-2 The hospital’s marking and finance department have just provided you, as chief financial officer, with pro forma income statement for your proposed sonogram center.