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January 31, 2015

January 31, 2015

Posted by **Anonymous** on Monday, August 1, 2011 at 12:34pm.

No Community Service Community Service

32 47

40 48

54 59

13 72

20 80

26 55

a. What statistical test should be used to analyze these data?

- statistics -
**MathGuru**, Tuesday, August 2, 2011 at 11:20amWhen the assumption of a normal distribution does not hold, a non-parametric alternative may be more useful. When data distributions are skewed, the Wilcoxon Rank Sum test (also known as the Mann-Whitney U test) can be used.

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