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Power comparisons of single-sample winsorized T,trimmed T and student's T |
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| Authors: | Karen K Yuen |
| Abstract: | The objective of this study is to evaluate the performance of Winsorized t which was proposed to be used as one alternative to the student's t statistic when the parent population is non-normal. The criterion we use is the power of the test. Comparative performance of the Winsorized t, trimmed t, and Studen$tCs t for normal populations and for Studen$tCs t distribution with 8, 4, and 2 degrees of freedom was investigated. |
| Keywords: | Winsorized-t statistic trimmed-t Student-t non-normal populations power of the test comparative performance uniformly most powerful unbiased test single sample problem |