Bivariate Tests for Location and Their Bahadur Efficiencies
Killeen, Timothy J. ; Hettmansperger, Thomas P.
Ann. Math. Statist., Tome 43 (1972) no. 6, p. 1507-1516 / Harvested from Project Euclid
We consider $(X_1, Y_1), (X_2, Y_2), \cdots, (X_n, Y_n)$, random sample from an absolutely continuous bivariate, population with symmetric density $f(x, y)$ and test $H_0: f(x, y)$ symmetric about (0,0) against $H_1:$ all possible location alternatives. Hotelling's $T^2$ statistic is often used for this test. We denote a form of this statistic by $T_n^{(2)}$ and make an exact Bahadur efficiency comparison of $T_n^{(2)}$ with respect to three of its competitors: a new bivariate Wilcoxon signed rank test $T_n^{(1)}$, Hodges' bivariate sign test $T_n^{(3)}$, and Blumen's bivariate sign test $T_n^{(4)}$. When a bivariate normal alternative with parameter $\Delta = \mu'\sum^{-1}\mu$ obtains, it is shown that the exact Bahadur slopes of $T_n^{(1)}, T_n^{(2)}$, and $T_n^{(3)}$ are identical to the exact slopes of their univariate analogues with a univariate normal alternative with parameter $\Delta = \mu/\sigma$ obtains. In this case, the exact Bahadur efficiency of $T_n^{(1)}$ is uniformly better than either the exact Bahadur efficiency of $T_n^{(3)}$ or $T_n^{(4)}$ with respect to $T_n^{(2)}$.
Publié le : 1972-10-14
Classification: 
@article{1177692383,
     author = {Killeen, Timothy J. and Hettmansperger, Thomas P.},
     title = {Bivariate Tests for Location and Their Bahadur Efficiencies},
     journal = {Ann. Math. Statist.},
     volume = {43},
     number = {6},
     year = {1972},
     pages = { 1507-1516},
     language = {en},
     url = {http://dml.mathdoc.fr/item/1177692383}
}
Killeen, Timothy J.; Hettmansperger, Thomas P. Bivariate Tests for Location and Their Bahadur Efficiencies. Ann. Math. Statist., Tome 43 (1972) no. 6, pp.  1507-1516. http://gdmltest.u-ga.fr/item/1177692383/