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A New Rank Test Against Ordered Alternatives in K-Sample Problems |
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| Authors: | Chap T Le |
| Abstract: | The distribution-free test against ordered alternatives proposed by Jonckheere (1954) is based on the Kendall's rank correlation coefficient τ. A new rank test is proposed and illustrated with a numerical example. The proposed test is based on Spearman's σ and has similar functional structure as the Kruskal-Wallis test. A useful by-product is a test for departure from a trend. |
| Keywords: | Rank test Ordered alternatives |