Question: In Exercise 7 of the previous chapter, the means for the negative feedback, positive feedback, and no feedback groups were X neg = 11.1, X

In Exercise 7 of the previous chapter, the means for the negative feedback, positive feedback, and no feedback groups were X̅_neg = 11.1, X̅_pos = 14.7, and X̅_no = 12.4, and the F ratio for the one-way ANOVA was equal to 3.69. Given that the ANOVA was significant at the .05 level and that there were 20 participants in each group:

(a) Find the value of LSD for this study.

(b) Which pair(s) of means differ significantly, according to the LSD test?

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