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Answers for “方差分析与 t 检验有何不同?”

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ANOVA (Analysis of Variance) is used to test if there is a difference among the means from three or more samples. It relies on the Central Limit Theorem because the validity of comparing these means depends on the assumption that the sample means are normally distributed, even if the underlying populations are not.

Conditions: Comparing three or more independent groups.; Focuses on the means of the samples.; Relies on the normality of the sampling distribution of the mean.