Which of the following statements are TRUE for Mann-Whitney U test?    I.          Data is normally distributed II.          Can only be used to test two groups III.         Converted into ranks IV.         No assumption on variances homogeneity   a. I, II, III & IV b. II, III & IV   c. I, II & III   d. II & III

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Which of the following statements are TRUE for Mann-Whitney U test?

 

 I.          Data is normally distributed

II.          Can only be used to test two groups

III.         Converted into ranks

IV.         No assumption on variances homogeneity

 

a.

I, II, III & IV

b.

II, III & IV

 

c.

I, II & III

 

d.

II & III

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