Syed Yahaya, S.S. and Othman, Prof.Madya Abdul Rahman and Keselman, H. J.
(2006)
Comparing the “Typical Score” Across
Independent Groups Based on Different Criteria
for Trimming.
Metodološki zvezki, 3 (1).
pp. 49-62.
Abstract
Nonnormality and variance heterogeneity affect the validity of the traditional tests for treatment group equality (e.g. ANOVA F-test and t-test), particularly when group sizes are unequal. Adopting trimmed means instead of the usual least
squares estimator has been shown to be mostly affective in combating the deleterious effects of nonnormality.
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