11. Below is an AOA diagram that includes the optimistic, most likely, and pessimistic time estimates (in days) for each activity. A mistake was made on activity 1-3, and it should read: 4-10-15. Use this information and the diagram to answer the question below. 2 7-8-10 8-5-6 3-5-9 7-8-11 1-4-6 2-3-4 A. What is the expected duration of the project? Be sure you use the following weighting: To +47, + TP B. Calculate the standard deviation of the critical path. C. What's the probability that the project finishes in fewer than 15 days? D. What's the probability it takes between 14 and 17 days