Differences between two sample averages are most likely to be statistically significant if
A) the difference between the samples is large.
B) the standard deviations of the samples are large.
C) both samples are drawn from the same population.
D) the sample means are larger than the sample medians.

Question

Quizplus · Accepted Answer

The larger the difference between the two sample averages, the more likely it is to be statistically significant. This is because a larger difference indicates that the two groups may truly differ in the population, rather than being due to chance or random sampling error. The other options (B, C, D) are not necessarily related to the significance of the difference between the two sample averages.

Differences Between Two Sample Averages Are Most Likely to Be