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Thread: Confused on correlation coefficient. How do I find the C (Critical Value).

  1. #1
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    Confused on correlation coefficient. How do I find the C (Critical Value).

    So at the top of my notes I have -1 less than or equal to r, and r is less than or equal to 1.



    and:

    a) if r>c, positive correlation.
    b) if -c less than or equal to r, and r is less than or equal to c, then no correlation.
    c) r<-c, then negative correlation.

    I computed a data set for the problem trying to see if there is linear correlation.

    I got r = .96

    n=6, which is the number of data entries.

    But how do I find the c? I forgot :S.
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  2. #2
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    Re: Confused on correlation coefficient. How do I find the C (Critical Value).

    It has been a long time since I did anything like this, but you notation confuses me. As I recall, when I studied correlation, and, for example, this:Statistics 2 - Correlation Coefficient and Coefficient of Determination, it is "r" that is the "correlation coefficient", not "c", and there is no "c". There is "positive correlation" if r< 0 and "positive correlation" if r> 0. There is no "correlation" if r= 0.
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