Choose all that are correct. a) Random samples from the same population will vary from sample to sample.
b) As the sample size increases, the sample distribution more closely resembles the population distribution.
c) Values of a sample statistic of different random samples of the same size from the same population will be the same.
d) If a random sample is chosen from a population with a large cluster of points at the maximum, the sample is likely to have at least one element near the maximum.

Using pert, adam munson was able to determine that the expected project completion time for the construction of a pleasure yacht is 21 months, and the project variance is 4. a) what is the probability that the project will be completed in 17 months? b) what is the probability that the project will be completed in 20 months? c) what is the probability that the project will be completed in 23 months? d) what is the probability that the project will be completed in 25 months? e) what is the due date that yields a 95% chance of completion?