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Robustness of Statistical Tests in the Two-Sample Location Problem |
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| Authors: | O Marrero |
| Abstract: | A simulation study was performed to compare three statistical tests with respect to their performances in the two-sample location problem for contaminated normal distributions. The three tests were: the t-test, the rank-transformed t-test, and the Wilcoxon rank-sum test. The results showed the t-test to be inferior to the other two tests. |
| Keywords: | Two-sample location problem Contaminated normal distributions t-test Rank-transformed t-test Wilcoxon rank-sum test Power |