Looking at four different diets, a researcher randomly assigned 20 equally overweight adults into each of the four diets. The researcher wishes to use a one-way ANOVA to analyze the data.
-What is the degrees of freedom for the treatments?
A)20
B)4
C)3
D)19
E)16

Question

Quizplus · Accepted Answer

The degrees of freedom for the treatments is equal to the number of treatments minus 1, which in this case is 4-1=3. Therefore, the best choice is C.

Looking at Four Different Diets, a Researcher Randomly Assigned 20