Statistics Dictionary
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Chi-Square Statistic
Suppose we select a random sample from a
normal
population. The chi-square statistic can be
computed using the following equation:
Χ2 =
[ ( n - 1 ) * s2 ] / σ2
where n is the sample size, σ is the
population standard deviation, s is the sample standard deviation
equals, and Χ2 is
the chi-square statistic.