The two-sample trimmed <i>t</i> for unequal population variances
BiometrikaPublished 1 January 1974Open access
Karen K. Yuen
Citations487
SJR quartileQ1
SJR score3.60
SNIP2.67
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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.
Keywords
Mathematics
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