Which method of planning projects uses three different estimates for each task's time? Deterministic Optimistic Probabilistic Pessimistic Confidence intervals can be calculated when using deterministic task time estimates. True False When you "crash" an activity to get it completed in less than "normal" time, what happens to its cost? It gets more expensive It gets less expensive It stays the same There may be multiple critical paths of various lengths. O True False Which activities should be considered for crashing? O those with slack time those with long task times critical tasks non-critical tasks