An ANOVA procedure is used for data obtained from four populations. Four samples, each comprised of 25 observations, were taken from the four populations. The numerator and denominator (respectively) degrees of freedom for the critical value of F are
A) 3 and 25.
B) 4 and 25.
C) 3 and 99.
D) 3 and 96.

Question

Quizplus · Accepted Answer

The degrees of freedom for the numerator (between groups) is calculated as the number of groups minus one, which is 4 - 1 = 3. The degrees of freedom for the denominator (within groups) is calculated as the total number of observations minus the number of groups, which is (4*25) - 4 = 100 - 4 = 96.

An ANOVA Procedure Is Used for Data Obtained from Four