Part B 6. Given the project within the table below calculate (13 Points) a. Calculate the ES, EF, LS, LF, and Slack for each activity, b. Whent is project completion time? c. What is the critical path? Activity Preceding D E F G AD Dration 2 5 1 10 3 6 8 EF 7. Consider the person which repairs vehicles that break down at an average of 12 vehicles per day. This person can service an average of 1 - 15 vehicles per day with a repair time distribution that follow an exponential distribution. (Model A) (12 Points) a. What is the utilization rate for this service system (P)? b the average time before the facility can return a breakdown to service Way? c. How much of that time is spent waiting for service (W)