Which of the Following Is Not an Assumption of the Wilcoxon

question 1

Multiple Choice

Which of the following is not an assumption of the Wilcoxon rank-sum test?

• A)The data are ratio,interval,or ordinal in scale-all of which must be converted to ranked (ordinal)data before conducting the test.
• B)The underlying distribution is not normal.
• C)The observations are independent.
• D)There is homogeneity of variance.

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