The reason that means that appear to be not so close could be concluded to be statistically the same is due to the variance.

Question

Quizplus · Accepted Answer

Variance measures how spread out a dataset is. If there is high variance in the data, it means that the individual data points are spread out over a wide range of values, which can result in means that appear to be not so close but are actually statistically the same.

The Reason That Means That Appear to Be Not So