Question

Suppose that a one way analysis of variance involves four treatments but that a different number of observations (e.g., n i ) has been taken under each treatment. Assuming that n 1 = 3, n 2 = 2, n 3 = 4, and n 4 = 3, write down the y vector and X matrix for analyzing these data as a multiple regression model. Are any complications introduced by the unbalanced nature of these data?

Answer 1