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Homogeneity of Variance in the Two-Sample Means Test

Barry K. Moser and Gary R. Stevens
The American Statistician
Vol. 46, No. 1 (Feb., 1992), pp. 19-21
DOI: 10.2307/2684403
Stable URL: http://www.jstor.org/stable/2684403
Page Count: 3
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Homogeneity of Variance in the Two-Sample Means Test
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Abstract

In the two-sample means test, the need for a preliminary variance test and the special emphasis given to the equal variance assumption are questioned. The conclusions can be easily used in the classroom to teach the two sample means test.

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