In comparing two curves graphed on the same axis, if the difference between the two means is four standard deviations or more, the difference between the two curves is considered to be statistically ____.
A) conclusive
B) inconclusive
C) insignificant
D) significant

Question

Quizplus · Accepted Answer

When the difference between two means is four standard deviations or more, it indicates a very large difference in the context of the data's variability. This is typically considered statistically significant, meaning the difference is unlikely to be due to chance alone.

In Comparing Two Curves Graphed on the Same Axis, If