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The F test for comparing two normal variances: correct and incorrect calculation of the two-sided p-value?

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Gallagher, J. (2006) The F test for comparing two normal variances: correct and incorrect calculation of the two-sided p-value? Teaching Statistics, 28 (2). pp. 58-60. ISSN 0141-982X

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To link to this article DOI: 10.1111/j.1467-9639.2006.00244.x

Abstract/Summary

This article illustrates that not all statistical software packages are correctly calculating a p-value for the classical F test comparison of two independent Normal variances. This is illustrated with a simple example, and the reasons why are discussed. Eight different software packages are considered.

Item Type:Article
Refereed:Yes
Divisions:Faculty of Science > School of Mathematical and Physical Sciences > Department of Mathematics and Statistics > Applied Statistics
ID Code:9471
Uncontrolled Keywords:Teaching , Variances , F test , p-value
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