Summary
Stein [2] has shown that the maximum likelihood estimator (MLE) of the regression coefficients is admissible in unvariate regression with one predictor or with two predictors and known means. In a similar way it is shown in the present note that the MLE is admissible when there are two predictands and one predictor and the means are known.
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References
Anderson, T. W. (1958).An Introduction to Multivariate Statistical Analysis, John Wiley and Sons, Inc., New York.
Stein, C. (1960). Multiple regression,Contributions to Probability and Statistics—Essays in Honor of Harold Hotelling, Stanford University Press, Stanford, California, 424–443.
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Sclove, S.L. Admissibility of the maximum likelihood estimator in the regression of two predictands on one predictor. Ann Inst Stat Math 22, 171–174 (1970). https://doi.org/10.1007/BF02506332
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DOI: https://doi.org/10.1007/BF02506332