variance ratio

var·i·ance ra·ti·o (F),

the distribution of the ratio of two independent estimates of the same variance from a gaussian distribution based on samples of sizes (n + 1) and (m + 1), respectively. Estimates are usually based on one such sample analyzed in such a way as to make them independent, for example, analysis of variance, and F may be used to test a null hypothesis that the observed differences among sample means is no greater than could readily be accounted for by chance.

单词	variance ratio
释义	variance ratio var·i·ance ra·ti·o (F), the distribution of the ratio of two independent estimates of the same variance from a gaussian distribution based on samples of sizes (n + 1) and (m + 1), respectively. Estimates are usually based on one such sample analyzed in such a way as to make them independent, for example, analysis of variance, and F may be used to test a null hypothesis that the observed differences among sample means is no greater than could readily be accounted for by chance.
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