A sum of squares that measures the total amount of variability in the observed values of the response variable is referred to as the:
A)Treatment sum of squares.
B)Error sum of squares.
C)Sum of squares within-treatment.
D)Total sum of squares.
E)Interaction sum of squares.

Question

Quizplus · Accepted Answer

The total sum of squares measures the overall variability in the response variable, including both the variation accounted for by the treatment effects and the residual variation that is not explained by the model. Therefore, it is the most appropriate choice.

A Sum of Squares That Measures the Total Amount of Variability