A Two-moment Chi-square Approximation For The Statistic Log (Equation Presented)
A two-moment chi-square approximation is derived for the statistic log (Equation presented), where (Equation presented) and (Equation presented) are, respectively, the arithmetic and geometric means of a sample from a gamma distribution. The proposed approximation is used for testing the shape parameter in a gamma distribution and for testing the homogeneity of normal population variances. © 1975, Taylor & Francis Group, LLC.
L. J. Bain and M. Engelhardt, "A Two-moment Chi-square Approximation For The Statistic Log (Equation Presented)," Journal of the American Statistical Association, vol. 70, no. 352, pp. 948 - 950, Taylor and Francis Group; Taylor and Francis; American Statistical Association, Jan 1975.
The definitive version is available at https://doi.org/10.1080/01621459.1975.10480328
Mathematics and Statistics
Geosciences and Geological and Petroleum Engineering
International Standard Serial Number (ISSN)
Article - Journal
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01 Jan 1975