To compare the means of two populations which cannot be assumed to be normally distributed and only ordinal-level data is available from two independent samples, we should use the t test for independent samples rather than the Mann-Whitney U test.
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Q1: Nonparametric statistics are sometimes called distribution-dependent statistics.
Q5: Statistical techniques based on assumptions about the
Q5: To compare the means of two populations
Q10: The methods of parametric statistics can be
Q13: An advantage of nonparametric statistics is that
Q13: In the one-sample runs test for randomness
Q16: The sampling distribution of R, the number
Q18: The appropriate test for comparing the means
Q20: The nonparametric counterpart of the t test
Q36: When only ordinal-level data are available, Spearman's
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