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 total?
A)20
B)4
C)3
D)19
E)16

Question

Quizplus · Accepted Answer

The degrees of freedom total in a two-way ANOVA is calculated as follows:

df_total = (number of rows - 1) x (number of columns - 1)

In this case, there are 5 rows and 4 columns, so the degrees of freedom total would be:

df_total = (5-1) x (4-1) = 16

Therefore, the correct answer is D (19) as it is not the degrees of freedom total in this question.

Looking at Four Different Diets, a Researcher Randomly Assigned 20