Consider a project which requires the following tasks: Task Immediate Predecessors HEUREYI B C D F G ABCDEFG none A A B, C none D, E D, E Draw the project network. Assume the time to complete each task is uncertain, with the optimistic, most probable, and the pessimistic task time given as follows: Task Optimistic 3 4 1 1 2 F 4 G 1 Task Time (in days) Most Probable Pessimistic 5 4 2 2 3 8 3 on the information provided, answer the following questions, please show your calculations. 6% b.i) For each task, compute the expected task completion time and variance. JENTE holding 7 4 3 9 18 17 ering cost 12% b.ii) Find the expected project completion time and the variance. Also, what are the critical activities? 5% b.iii) What is the probability of completing the project in 24 days or less? 5% b.iv) What is the probability of completing the project in 22 days or more?