A new angle on the t-test

Graham R. Wood; David J. Saville

doi:10.1111/1467-9884.00301

A new angle on the t-test

Graham R. Wood, David J. Saville^*

^*Corresponding author for this work

Research output: Contribution to journal › Article › peer-review

3 Citations (Scopus)

Abstract

R. A. Fisher's early work on linear models relied heavily on his knowledge of n-dimensional geometry. To illustrate this, we present an elementary, complete, modern day account of Fisher's geometric approach for the simple case of a paired samples t-test for a sample size of 3. A natural consequence of this approach is a surprisingly simple and explicit expression for the p-value.

Original language	English
Pages (from-to)	99-104
Number of pages	6
Journal	Journal of the Royal Statistical Society Series D: The Statistician
Volume	51
Issue number	1
DOIs	https://doi.org/10.1111/1467-9884.00301
Publication status	Published - 2002

Keywords

Linear algebra
p-value
Paired samples t-test
Vector geometry

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10.1111/1467-9884.00301

Cite this

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KW - Vector geometry

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A new angle on the t-test

Abstract

Keywords

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