The Network for a project is shown below. The time and standard deviation in months attached to each node is given (in parenthesis). Note: V = square root.The data was entered into a PERT Program and attached are the results. (The program was incapable of computing variances and standard deviations so these were computed manually and included in the report) A) What activities are not on the critical path? B) How long is the critical path? C) Assuming independent activities and that the length of the critical path (CP) is normally distributed, what is the probability that the CP will be completed in 25 months? D) Suppose you wish to reduce the probability that the project will take longer than 25 months. You can crash one of the following activities, and only one, by 1 month: A, D, G or F. Without computing, which would you choose to crash? Why? (Assume that crashing will reduce mean activity time by one month and leave the variance unchanged). D(2,1) E(3,1) B(4,1) H(1,1) End G(9, 5 ) C6, 12) Start K(10,4) A(2,1) F(5,1) 117, 18) Letter Activity Completion Time Predecessors Std deviation A B 1 2 2 4 None None D E F 3 4 5 6 6 2 3 5 2 2 4 1 1 1 2 1 1 1 15 1 V8 4 0 G H 7 8 9 1 3,6 5,7 J K End 9 10 11 7 10 0 1 9 8, 10 RESULTS Slack Activity Number Expected Time Critical Path Variance 1 2 N 1 2 3 4 5 6 7 8 9 10 11 2 4 6 2 3 5 9 1 7 10 0 1 0 0 10 10 3 0 0 1 1 0 No Yes Yes No No No Yes Yes No No Yes 5 1 0