We can infer a statistically significant difference between two population means when
A) our estimates of the two means are different.
B) the variances of the two means do not overlap.
C) the standard deviations of the two means do not overlap.
D) the 95% confidence intervals for the two means do not overlap.
E) the 95% confidence intervals for the two means are of different widths.

Question

Quizplus · Accepted Answer

The 95% confidence intervals for the two means not overlapping is a good indication that there is a statistically significant difference between the two population means. This is because there is a low probability (5%) that the true population means overlap between the two groups.

We Can Infer a Statistically Significant Difference Between Two Population