An ANOVA was run with five groups. Give the coefficients for the contrast that compares the average of the means of the first four groups with the mean of the last group. Let a. az, ay, and as be the contrast coefficients of the first 4 groups and let as be the contrast coefficient of the last group. Give the contrast coefficients such that the contrast coefficient of the last group is negative a 02 d ---
Hint Check Answer means Hint Dups an the last A contrast is a combination of population means of the form W= = dili where the sum of the coefficients di is 0.