1.Consider a path on a network. The optimistic time to complete is 3 the realistic time is 14, and the pessimistic time is 20. What is the variance associated with the path?

2.Consider a path on a network. The optimistic time to complete is 6 the realistic time is 15, and the pessimistic time is 21. What is the expected or mean time through the path?

3.Consider a path on a network. The optimistic time to complete is 3 the realistic time is 14, and the pessimistic time is 20. What is the variance associated with the path?

4.Project overhead is $538.99 per day. Normal task interval is 17. Consider crashing this interval at a crash cost of $258.81 per day. What is the project savings if a crash interval of 11 is achieved.