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Asympotic efficiency of signed - rank symmetry tests under skew alternatives

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  • Alessandra Durio
  • Yakov Nikitin

Abstract

The efficiency of some known tests for symmetry such as the sign test, the Wilcoxon signed-rank test or more general linear signed rank tests was studied mainly under the classical alternatives of location. However it is interesting to compare the efficiencies of these tests under asymmetric alternatives like the so-called skew alternative proposed in Azzalini (1985). We find and compare local Bahadur efficiencies of linear signed-rank statistics for skew alternatives and discuss also the conditions of their local optimality. We calculate also such efficiencies for the family of distribution-free Maesono statistics proposed in Maesono (1987).

Suggested Citation

  • Alessandra Durio & Yakov Nikitin, 2002. "Asympotic efficiency of signed - rank symmetry tests under skew alternatives," ICER Working Papers 12-2002, ICER - International Centre for Economic Research.
    • Handle: RePEc:icr:wpicer:12-2002
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    File URL: http://www.bemservizi.unito.it/repec/icr/wp2002/nikitin12-02.pdf
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    References listed on IDEAS

    as
    1. Ya. Nikitin & E. Ponikarov, 2002. "Asymptotic Efficiency of Maesono Statistics for Testing of Symmetry," Annals of the Institute of Statistical Mathematics, Springer;The Institute of Statistical Mathematics, vol. 54(2), pages 382-390, June.
    2. Arnold, Barry C. & Beaver, Robert J., 2000. "The skew-Cauchy distribution," Statistics & Probability Letters, Elsevier, vol. 49(3), pages 285-290, September.
    3. Genton, Marc G. & He, Li & Liu, Xiangwei, 2001. "Moments of skew-normal random vectors and their quadratic forms," Statistics & Probability Letters, Elsevier, vol. 51(4), pages 319-325, February.
    4. Alessandra Durio & Yacov Yu. Nikitin, 2001. "Local asympotic efficiency of some goodness-of-fit tests under skew alternatives," ICER Working Papers 04-2001, ICER - International Centre for Economic Research.
    5. A. Azzalini & A. Capitanio, 1999. "Statistical applications of the multivariate skew normal distribution," Journal of the Royal Statistical Society Series B, Royal Statistical Society, vol. 61(3), pages 579-602.
    6. Monica Chiogna, 1998. "Some results on the scalar Skew-normal distribution," Statistical Methods & Applications, Springer;Società Italiana di Statistica, vol. 7(1), pages 1-13, April.
    7. E. Kremer, 1982. "Local comparison of linear rank tests, in the Bahadur sense," Metrika: International Journal for Theoretical and Applied Statistics, Springer, vol. 29(1), pages 159-173, December.
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    Keywords

    skew family; linear rank test; Maesono statistic; Bahadur efficiency; local optimality;
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