Two-sample median test for order restricted randomized designs

Omer Ozturk

Statistics & Probability Letters, 2007, vol. 77, issue 2, 131-141

Abstract: A two-sample Mood median test, along with an associated confidence interval, is developed for the contrast parameter of the treatment and control medians, under an order restricted randomization. The exact and asymptotic null distributions of the test statistic are derived. It is shown that the proposed test is superior to the corresponding procedures based on completely randomized and ranked set sampling designs both in asymptotic relative efficiency and in empirical power study.

Keywords: Design; Unequal; allocation; Pitman; efficiency; Nonparametric; testing; Mode; Information; Mood; test; Median; test; Mann-Whitney-Wilcoxon; test; Ranked; set; sampling (search for similar items in EconPapers)
Date: 2007
References: View complete reference list from CitEc
Citations: View citations in EconPapers (1)

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