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 |
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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 | |
Publication status | Published - 2002 |
Keywords
- Linear algebra
- p-value
- Paired samples t-test
- Vector geometry