PROBLEM B The following table provides the optimistic, most likely, and pessimistic times for a project which has five activities. The five activities are A, B, C, D, and E. Answer questions 11-15: TIME ESTIMATES (days) ACTIVITY PRECEDES Optimistic MostLikely Pessimistic A B, C 3 4 5 B D 5 8 12 D 8 9 10 D E 1 2 3 E End 3 4 5 E) 12 E) 1/3 11. The earliest expected completion date of the project is: A) 27 B) 19 C) 15 D) 17 12. The variance for activity Cis: A) 1/9 B) 4 C) 2 D) 1/6 13.The variance of the critical path is: A) 1/3 B) 2/3 C) 4/9 D) 1/6 14. The EF for activity Cis: A) 4 B) 17 C) 15 D) 13 15. The activity slack for activity Dis: A) 4 B) 0 12 13 E) 1/9 E) 27 C) D) E) 17