The following estimates of activity times (in days) are available for a small project. Activity Optimistic Most Probable Pessimistic A 5 6.0 7 B 7 8.0 9 C 6 6.5 9.5 D 6 8.0 9 F 5 6.0 8 4 5.0 6 (a) Compute the expected activity completion times and the variance for each activity. (Round your answers to two decimal places.) Activity Expected Times Variance A B C D E F(b) An analyst determined that the critical path consists of activities B-D-F. Compute the expected project completion time and the variance of this path. (Round your answers to two decimal places.) expected project completion time variance of projection completion time Need Help? Read It # Show My Work (Optional)