In a completely randomized design for ANOVA,the numerator and denominator degrees of freedom are 4 and 25,respectively.The total number of observations must equal:
A)24
B)25
C)29
D)30

Question

Quizplus · Accepted Answer

The total degrees of freedom can be calculated by adding the numerator and denominator degrees of freedom. Thus, Df(total) = Df(numerator) + Df(denominator) = 4 + 25 = 29. The total number of observations is equal to the total degrees of freedom plus one, so the answer is 29 + 1 = 30. Therefore, the best choice is (D).

In a Completely Randomized Design for ANOVA,the Numerator and Denominator