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What nonparametric test is used when the assumptions for the parametric ANOVA cannot be met? Its purpose is to test whether three or more populations are equal. The data must be at least ordinal
scaled. A. Students’ t B. Kruskal- Wallis C. Mann-Whitney D. ANOVA
Parametric statistical tests assume that your data are normally distributed (follow a classic bell-shaped curve). An example of a parametric statistical test is the Student's t-test. Non-parametric tests make no such assumption. [ [ An example of a non-parametric statistical test is the Sign Test. .............. ] ]
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Asked 11/14/2011 6:03:56 PM
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public opinion poll surveyed a simple random sample of voters. Respondents were classified by gender and by voting preference—Republican, Democrat, or Independent. The results follow.
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