Efficiency comparison of the Wilcoxon tests in paired and independent survey samples
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The efficiency concepts of Bahadur and Pitman are used to compare the Wilcoxon tests in paired and independent survey samples. A comparison through the length of corresponding confidence intervals is also done. Simple conditions characterizing the dominance of a procedure are derived. Statistical tests for checking these conditions are suggested and discussed.
KeywordsWilcoxon tests Pitman efficiency Bahadur efficiency Length of confidence intervals U-statistics Kernel density estimator
Mathematics Subject Classification62G10 62K05
The authors thank the editor and the referees for constructive comments and suggestions. The second author was supported by a doctoral scholarship from the Hans-Böckler-Stiftung.
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