Chi Squared Significance Table. The number of degrees of freedom is r 1 c 1. In this table the number of degrees of freedom corresponds to the row that we will use.
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Assuming that we have an alpha level of significance equal to 0 05 it is time to use the chi square distribution table. In this table the number of degrees of freedom corresponds to the row that we will use. The alpha level for the test common choices are 0 01 0 05 and 0 10 the following image shows the first 20 rows of the chi square distribution table with the degrees of freedom along the left side of the table and the alpha levels along the top of the table.
To use the chi square distribution table you only need to know two values.
See chi square test page for more details. See chi square test page for more details. If the test statistic is greater than the upper tail critical value or less than the lower tail critical value we reject the null hypothesis. For a chi square test of the independence of two categorical variables we have a two way contingency table with r rows and c columns.
