Label each of the following statements about the PERT three-estimate approach as true or false, and then justify your answer by referring to specific statements (with page citations) in the chapter.
(a) Activity durations are assumed to be no larger than the optimistic estimate and no smaller than the pessimistic estimate.
(b) Activity durations are assumed to have a normal distribution.
(c) The mean critical path is assumed to always require the minimum elapsed time of any path through the project network.