The variation that reflects the random error from the sampling process is known as the
A) variation within the groups.
B) variation between the groups.
C) treatment mean square.
D) interaction effect.
E) treatment sum of squares.

Question

Quizplus · Accepted Answer

Variation within the groups reflects the random error from the sampling process, which is also known as residual variation. This variation is caused by factors other than the treatments being tested and reflects the natural variation that occurs when a sample is drawn from a population. The other answer choices (B, C, D, E) are related to between-group variation or treatment effects, and do not reflect the random error from the sampling process.

The Variation That Reflects the Random Error from the Sampling