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Thread: Is the Chi-Squared test a suitable way to analyse this data? PLEASE HELP!!

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    Is the Chi-Squared test a suitable way to analyse this data? PLEASE HELP!!




    I have 2 data sets, one is my control, one experimental, and I have 4 distinct phenotypes resulting, which I'll call A, B, C and D.

    Control: A - n=18, B - n=0, C - n=0, D - n=0
    Experimental: A - n= 3, B - n=20, C- n= 0, D - n=0.

    What I want to show is that in the experimental case, the number falling into B is stat sig. (which just looking at the numbers seems pretty clear to me), but nonetheless I need to do a test on it.... I'm just not sure what to do..???



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    You don't require any statistical test here.( It will be bit funny if you do stat stuff here).
    If you wanted to do statistical test, you can try Chi-Square Test for Homogeneity.
    In the long run, we're all dead.

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    Thanks for your reply, but I'm not sure I understand why I wouldn't need stats here...? I'd be really grateful if you could explain a bit more!

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    See the link below for test of homogenity. http://stattrek.com/AP-Statistics-4/...?Tutorial=Stat

    And If your interest is only B, in that case two sample proportion test can be used.
    consider Bs are succes
    i.e. Control = 0% , Experimental = 20/23

    Check this thread for more
    http://www.talkstats.com/showpost.php?p=13562

    I think this will be simple
    In the long run, we're all dead.

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    Thank you very much!

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