The activity details and their predecessors are given below use the PERT method to calculate the expected time (1 Marks) and construct the network diagram (1 Mark) to find the critical path of the activity (0.5 Mark) also indicate the project duration (0.5 Mark) with the standard deviation (1 Mark). Note: Use upto 3 decimal in your answer and enter your answer in the box, also kindly upload your worked out sheet below. 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