A partially solved pert problem is detailed in the table below. times are given in weeks

Most likely Activity ImmediatePredecessor(s) Optimistic Time Pessimistic Time time 7 9 14 B A 2 2 8 8 12 16 D 5 10 m B 6 8 F B 6 8 10 G CF 2 3 4 . D 2 2 8 1 H 6 8 16 G1 4 6 14 K EJ 2 2 5 ate the expected duration (D), and variance of each activity Duration Variance Activity A B D E F G H 1 K b) Calculate ES, EF, LS, LF. S for each activity, Activity ES EF LS LF S A B c D m F G H ) Which activities form the critical path? ) What is the estimated time of the critical path? ) If the project is due to be completed in 40 weeks, what is the probability that the project will be completed on the due date If the project manager wants at least a 95% probability that the project will be completed on the due date, what is the short atisfy the manager? ) Which activity(ies) can be delayed 35 weeks without impacting the expected project completion date? ) How many week(s) can you delay activity E, without impacting the expected project completion date