Chi Square Test Of Independence Formula. χ 2 i j 1 n o i j e i j 2 e i j. If the p value that corresponds to the test statistic x2 with rows 1 columns 1 degrees of freedom is less than your chosen significance level then you can reject the null hypothesis.
The chi square distribution is one of the most important distributions in statistics together with the normal distribution and the f distribution. Two times the number of degrees of freedom is equal to the variance. The number of degree of freedom is equal to the mean distribution.
The formula for a chi square statistic is.
If the p value that corresponds to the test statistic x2 with rows 1 columns 1 degrees of freedom is less than your chosen significance level then you can reject the null hypothesis. The number of degree of freedom is equal to the mean distribution. We use the following formula to calculate the chi square test statistic x2. Two times the number of degrees of freedom is equal to the variance.
