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A sampling study on the power function of the χ2 ‘index of dispersion’ test

Published online by Cambridge University Press:  15 May 2009

B. M. Bennett
B. M. Bennett
Affiliation:
University of Washington, Seattle, U.S.A.
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A total of 454 sampling experiments were performed on the groupings of 100 samples each from separate Poisson populations in order to establish estimates of frequency of rejection of the hypotheses of homogeneity by means of the z, or index of dispersion, test. Results of these artificial realizations are presented in Figs. 1–6, and compared with the corresponding non-central ξ2-distributions.

It is a pleasure to mention the technical assistance of Dennis Hamilton of the Research Computer Laboratory in programming the detailed computational phases of this investigation, which was partially supported by the State of Washington Initiative 171 Funds for Research in Biology and Medicine.

Type
Research Article
Information
Journal of Hygiene , Volume 57 , Issue 3 , September 1959 , pp. 360 - 365
Copyright
Copyright © Cambridge University Press 1959

References

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