Question 4) Consider the network described in the table below. Immediate Predecessor(s) Activity Pessimistic 15 Probable 10 9 K L M Optimistic 8 7 5 3 10 6 3 3 J J KM KM LN 9 5 N o 1 7 4 10 10 P 8 3 Task Slack Variance Early Start Early Finish Late Start Late Finish Expected Time J K L M N 0 P C) What are the critical path activities? D) What is the project completion time? E) Calculate the project variance and standard deviation. F) What is the probability of the project to be finished within 15 days?, Present the analysis! G) F) What is the probability of the project to be finished within 21 days?, Present the analysis! H) F) What is the probability of the project to be finished during 29 days?, Present the analysis