3. Consider the tasks, durations, and predecessor relationships in the following network. Draw the network and answer the questions that follow. a. Draw a project network for this problem. ( 5 points) b. Fill in all the blanks in the following table. (10 points) Note: For variance (2) in activity time, keep two decimal places. c. What is the expected time and variance to complete the project? (4 points) d. What is the probability of completion of the project before week 42? (4 points) e. Suppose activity E were delayed for 5 weeks. By how much would the entire project be delayed? (4 points)