Questions are based on the following figure.

Each cell represents one combination of factor levels. The actual experiment assigns participants only to the combinations represented by the shaded cells. It is unknown whether the levels of the factors are fixed or randomly selected.
-Both A and B are fixed-effects factors. Each cell has 5 observations. The F_B ratio has degrees of freedom equal to?

Question

Questions are based on the following figure.

Each cell represents one combination of factor levels. The actual experiment assigns participants only to the combinations represented by the shaded cells. It is unknown whether the levels of the factors are fixed or randomly selected.
-Both A and B are fixed-effects factors. Each cell has 5 observations. The F_B ratio has degrees of freedom equal to?

Quizplus · Accepted Answer

(Because F_B is the ratio of MS_B and MS_with, degrees of freedom for the F ratio are (K - 1), KJ₍_k₎(n - 1). Since K = 3, J₍_k₎ = 2, and n = 5, F_B has df equal to 2, 24.)

Questions Are Based on the Following Figure