An Alternate Multinomial Assessment of the Accuracy of the χ2Test of Goodness of Fit
作者:
Robert Radlow,
EdwardF. Alf,
期刊:
Journal of the American Statistical Association
(Taylor Available online 1975)
卷期:
Volume 70,
issue 352
页码: 811-813
ISSN:0162-1459
年代: 1975
DOI:10.1080/01621459.1975.10480306
出版商: Taylor & Francis Group
数据来源: Taylor
摘要:
Tate and Hyer [9] indicated in a recent article that the χ2test of goodness of fit is markedly in error when expected frequencies are small, and that, moreover, errors of substance remain even with large expected frequencies. This result appears to arise from the application of an improper statistical model. When the multinomial test proposed here is substituted, it is found that errors of the χ2test are smaller than Tate and Hyer would suggest for small expected frequencies, and negligible for large expected frequencies. These empirical results support the logical arguments presented here in favor of the proposed “Exact χ2Test.”
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