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Illuminating Statistical Analysis Using Scenarios and Simulations by Jeffrey E. Kottemann

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33Variance Ratios and the F-Distribution

To compare two sample variances, we need to (re)invent a sample statistic and the corresponding probability distribution. To make a sample statistic we can simply take the ratio of two sample variances and see if it is much different than 1, since a ratio value close to 1 suggests that the population variances may well be equal. We'll denote ...

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