Differences between two samples are LEAST likely to be statistically significant if the samples are _______ and the variability of the samples is _______.
A) small;small
B) large;large
C) small;large
D) large;small

Question

Quizplus · Accepted Answer

When samples are small and the variability within those samples is large, it becomes more difficult to detect a true difference between the groups, if one exists, because the large variability can mask underlying differences.

Differences Between Two Samples Are LEAST Likely to Be Statistically