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    im currently doing a project using spearmans rank i have 40 participants therefore 38 degrees of freedom the table of critical values does not go beyond 30.
    the formula for which is sqrt(n-2)/1-(rs)sqd

    my rs is 0.9005785 so sqd is 0.8110419 therefore 1-(rs)sqd = 0.1889584
    N is 40 so (n-2) is 38
    so 38/ 0.1889584 = 201.10246
    the square route of which is 14.181059
    am i right?
    my lecturer tells me this is not a correct level of significance where am i going wrong?
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