5-5 inference on the ratio of variances of two normal populations 5-5.1 the f distribution we wish...

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Material Variances

Guide to Microsoft Excel for calculations, statistics, and ... · 3. t-Test: Two-Sample Assuming Equal Variances 22 4. t-Test: Two-Sample Assuming Unequal Variances 27 5. t-Test:

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hmwu StatR-04 Testing Homogeneity of Variances var.test {stats}: an F test to compare the variances of two samples from normal populations. bartlett.test {stats}: a parametric test

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5-5 Inference on the Ratio of Variances of Two Normal Populations

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Assumptionspeople.stat.sc.edu/hansont/stat506/Assumptions.pdf · Formal test for constant variance If you must test for equality of variances, your best bet is Levene’s test. This

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Statistics using ExcelTable 3: t-test assumin unequal variances 2.5 t-test for two samples assuming equal variances We will perform the same test assuming that the equality of variances