Which of the following statement(s)concerning probabilities of completion is/are incorrect?
A)Using the variance of each activity,we can compute the likelihood of completing the project in a given time period.
B)The probability of completing a path is found by calculating the standard normal deviate of the desired completion time less the expected completion time.
C)The distribution of a path's completion time will be approximately normally distributed if the path has a large number of activities on it.
D)The individual activity completion times must be normally distributed

Question

Quizplus · Accepted Answer

The individual activity completion times do not have to be normally distributed for the probabilities of completion to be calculated. The Central Limit Theorem states that the distribution of sample means will approach a normal distribution as the sample size increases, regardless of the distribution of individual data points. Therefore, the distribution of a path's completion time will still be approximately normally distributed, even if the individual activity completion times are not normally distributed. Choices A, B, and C are all correct statements about probabilities of completion.

Which of the Following Statement(s)concerning Probabilities of Completion Is/are Incorrect