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Why use mann-whitney U test rather than independent sample test?

  1. Jan 9, 2010 #1
    why use non parametric mann-whitney U test rather than parametric independent sample test.

    I have a question regarding this because i just complete two question, as one I am using parametric tests, independent sample test, solve the mean selling price of a home with a conservatory different from the mean selling price of a home without conservatory.

    I also used non parametric tests, mann-whitney U test , these two test obtain the same result.

    can any one tell me why it's is most appropriate in testing the hypothesis using non-parametric mann-whitney U test?

    Thank you very much for your help. I will wait online.
  2. jcsd
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