1. Use the project description presented in the table below for the following questions: Activity Immediate Predecessor None Optimistic Time Most likely Time Pessimistic Time (OT) (MT) (PT) 4 6 5 mlolo 5915 la 5 6 10 5 5 5 a.) the expected time for each activity 6.17 733 7.67 933 B.) the variance 1.78 2.78 0.03 0.69 0.69 Use both the longest path method and ES/EF; LS/LF method for the following questions and show your answers in the table below. What is the expected project completion time? What are the critical activities? What are the slack values for non-critical activities? The Longest Path Method ES EF/LS/LF Expected project finish time Critical activities Non-critical activities (slack values) Calculate the probability that the project will be completed in 40 weeks. Calculate the probability that the project will be completed in 43 weeks