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The effect of non-normality on the power of the test of a two-way classification, fixed effects model--no interactionTurner, Robert William January 1966 (has links)
This thesis considers the effect of nonnormality, in terms of skewness and kurtosis, on the power of the analysis of variance test for a two-way classification, fixed effects model (with two replicates and no interaction). Most of the populations considered were only moderately non-normal, that is, only slightly peaked or skewed.
We first considered the effect of a change in skewness for a fixed kurtosis. We then considered the effect of a change in kurtosis for a fixed skewness. In both cases, there was no significant deviation in power, as compared with the power in the normal case.
The effect of non-normality on the power for an increase in both skewness and kurtosis for a particular Pearson Curve was then considered. A significant deviation in the power was found.
The results indicate that for moderate departures from normality, the two-way classification, fixed effects model, is robust. / M.S.
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