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The two-sample trimmed t for unequal population variances
Abstract
The effect of nonnormality on the Weleh approximate degrees of freedom t test is demonstrated. A two-sample trimmed t statistic for unequal population variances is proposed and its performance is also evaluated in comparison to the Welch t test under normality and under long-tailed distributions. If the underlying distributions is long-tailed or contaminated with outliers, the trimmed t is strongly recommended.
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Metadata
- Authors
- YUEN, K. K.
- Venue
- Biometrika
- Publisher
- Oxford University Press (OUP)
- Published
- 1974
- Volume
- 61
- Issue
- 1
- Pages
- 165-170
- ISSN
- 0006-3444 (ISSN-L)
- 1464-3510
- OpenAlex
- W2079484991
- Cited by
- 486
- References
- 0
- FWCI
- 1.28
- Type
- journal article
- Language
- en
- Open access
- closed
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