When selecting a pair of random-sample means from a single population, the probability of the first mean being higher than the second mean is
A) 1.00
B) 0
C) .50
D) either a or b, but never c

Question

Quizplus · Accepted Answer

Since we are selecting from a single population, there is no reason to believe that one mean should be more likely to be higher than the other. Therefore, the probability of the first mean being higher than the second mean is the same as the probability of the second mean being higher than the first, resulting in a 50/50 chance or .50 probability.

When Selecting a Pair of Random-Sample Means from a Single