Short-Cut Formulas for the Exact Partition of χ 2 in Contingency Tables
- 1 December 1954
- journal article
- research article
- Published by JSTOR in Biometrics
- Vol. 10 (4), 452-458
- https://doi.org/10.2307/3001617
Abstract
Short-cut formulas are given which permit the exact partition of chi-square from an r x c contingency table into (r - 1) x (c - 1) individual degrees of freedom. Each single degree of freedom chi-square is computed from a formula which is a function only of the observed frequencies. A general expression is given which permits the construction of such formulas for contingency tables of any order. The method is applied to some experiments which compare the effects of X and beta radiation on mitotic rates in grasshopper neuroblasts (Chortophaga viridifaciata).This publication has 2 references indexed in Scilit:
- A Note on the Subdividsion of χ 2 into ComponentsBiometrika, 1949
- THE DERIVATION AND PARTITION OF χ2 IN CERTAIN DISCRETE DISTRIBUTIONSBiometrika, 1949