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    Hello I'm a biology student currently doing coursework in sixth form.

    I have to do this Mann-Whitney U test for some data I have collected and have calculated a U value of 0.

    I have to use a confidence interval of 5% and I have a critical value of 13 (so the difference between my calculated value and critical is 13).

    Does this mean I reject my null hypothesis or not? I'm very confused, help much appreciated
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    If your calculated value is higher than your critical value than there is a difference and you reject the null hypothesis.

    I can post a sheet that shows you step by step instructions on how to calculate everything to do with the Mann-Whitney U if you'd like?
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    (Original post by bluemadhatter)
    If your calculated value is higher than your critical value than there is a difference and you reject the null hypothesis.

    I can post a sheet that shows you step by step instructions on how to calculate everything to do with the Mann-Whitney U if you'd like?
    yes please.
    That would be very much appreciated, thank you
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    (Original post by Matthew_Jackson_)
    yes please.
    That would be very much appreciated, thank you
    okay give me a couple minutes
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    (Original post by Matthew_Jackson_)
    yes please.
    That would be very much appreciated, thank you
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