One-way ANOVA:
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A one-way ANOVA was used to test for preference differences among three sizes of a candy bar. Preferences for candy bar differed significantly across the three sizes, F (2, 27) = 5.77, p = .008. Tukey post-hoc comparisons of the three groups indicate that the fun-size group (M = 5.41, 95% CI [4.99, 5.83]) gave significantly higher preference ratings than the regular-size group (M = 4.43, 95% CI [3.80, 5.06]), p = .007. Comparisons between the king-size group (M = 5.11, 95% CI [4.79, 5.43]) and the other two groups were not statistically significant at p< .05.
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