An ANOVA procedure is used for data obtained from five populations. five samples, each comprised of 20 observations, were taken from the five populations. The numerator and denominator (respectively) degrees of freedom for the critical value of F are
A)5 and 20
B)4 and 20
C)4 and 99
D)4 and 95

Question

Quizplus · Accepted Answer

The numerator degrees of freedom are equal to the number of populations minus one, which is 5-1=4. The denominator degrees of freedom are equal to the total number of observations minus the number of populations, which is (5*20)-5=95. So the correct choice is D, with numerator degrees of freedom as 4 and denominator degrees of freedom as 95.

An ANOVA Procedure Is Used for Data Obtained from Five