The activity details and their predecessors are given below use the PERT method to calculate the expected time (1 Mark) and construct the network diagram (1 Mark) to find the critical path of the activity (1 Mark) also indicate the project duration (1 Mark) with the standard deviation (1 Mark). Activity Predecessors the expected Optimistic Most likely Pessimistic time time time time (to) (tm) (tp) A 12 12 20 B 2 9 50 C 12 25 50 D A 2 19 26 E C 17 24 29 F A 11 8 16 G BDE 3 11 29 Note: Use upto 3 decimal in your answer and enter your answer in the box, also kindly upload your worked out sheet answer in link provided at Q23. Enter the expected activity time for A. Enter the expected activity time for B. Enter the expected activity time for C. Enter the expected activity time for D. Enter the expected activity time for E. Enter the expected activity time for F. Enter the expected activity time for G. Find the critical path value for the total project duration? Standard deviation In Q23 upload your constructed network diagram and indicate the critical path of the activity, No need to enter any answer in this box.