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Thread: Which stat test to use

  1. #1
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    Which stat test to use




    Hi all,

    I have a data set like this:
    Nematodes copepods Pylochaetes
    Controle1 1 1 2
    Controle2 1 1 1
    Controle3 1 2 1
    TreatmentA1 10 0 1
    TreatmentA2 10 0 1
    TreatmentA3 11 0 1
    TreatmentB1 115 1 11
    TreatmentB2 115 1 11
    TreatmentB3 120 1 13

    I want to test if my treatments have an effect on the counted organisms taking all organisms in to account. It is easy to test if nematodes differ between controls but i don't know which test I have to use to incorporate all data.
    My hypothesis is: treatments do not differ from each other and from the control.

    I'm familiar with programs like 'statistica', 'R' and graphpad.

    Can anybody give me some help?

    Greetings

  2. #2
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    Re: Which stat test to use


    I think chi-square would be used.

    There're requirements for the chi-square, check for them first.

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