use excel

please make sure the answer is correct 100%

Submitted softcopy through blackboard. 2) Time management Problem: You have given the following table of activities with time estimated in days for IT project. Answer the following questions: a)Calculate the expected time and draw the Network for this problem? b)What is the critical path activities? c)Based on the variance for the project what is the probability that this project can be finished on 50 days and also 48 days. Note that you need to use the Z-table(attached). Which one of them is the most probable? Activit Predecess or Optimisti Pessimisti C A B D E F G H B B D F F EH I 3 1 4 2 1 4 10 4 4 8 Most probabl y 5 5 7 8 3 8 20 12 8 14 4 3 6 5 2 6 13 5 6 11 J