In a basic one-way ANOVA, what components are being contrasted?

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In a basic one-way ANOVA, the between-group variance (variation of means between different groups) is being contrasted with the within-group variance (variation within each group). This is what allows us to determine if there is a significant difference between the means of the groups. Option B is not correct because the total variance includes both the within and between-group variance. Option C and D are not correct because treatment and interactions are not being specifically contrasted in a one-way ANOVA.

In a Basic One-Way ANOVA, What Components Are Being Contrasted