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Abstract An affine-invariant signed-rank test is proposed for the one-sample multivariate location problem. The test suggested is a modification of Randles's multivariate sign test based on interdirections, which extends Blumen's bivariate procedure to the multidimensional setting. Comparisons are made between the proposed statistic and several competitors via Pitman asymptotic relative efficiencies and Monte Carlo results. The signed-rank statistic appears to be robust. It performs better than its competitors when the distribution is light-tailed, and virtually as well as Hotelling's T 2 under multivariate normality. For heavy-tailed distributions the signed-rank statistic performs better than Hotelling's T 2 but not as well as Randles's statistic. Key Words: Affine-invariantInterdirectionsOne sampleSign test
Peters et al. (1990) studied this question.