Test based on x2-distribution

Test based on a-distribution

    • In case of attributes we can not employ the parametric tests such as F and t. Instead we have to apply atest. When we want to test whether a set of observed values are in agreement with those expected on the basis of some theories or hypothesis. The astatistic provides a measure of agreement between such observed and expected frequencies.

    The
    a test has a number of applications. It is used to
    1. Test the independence of attributes
    2. Test the goodness of fit
    3. Test the homogeneity of variances
    4. Test the homogeneity of correlation coefficients
    5. Test the equaslity of several proportions.
    6. In genetics it is applied to detect linkage.

Last modified: Monday, 19 March 2012, 9:25 PM