Chi Square Test Table Degrees Of Freedom. Values of the chi squared distribution. For two sided tests the test statistic is compared with values from both the table for the upper tail critical values and the table for the lower tail critical values.
For two sided tests the test statistic is compared with values from both the table for the upper tail critical values and the table for the lower tail critical values. Assuming that we have an alpha level of significance equal to 0 05 it is time to use the chi square distribution table. But it may not be immediately clear why this is the correct number of degrees of freedom.
To find probability for given degrees of freedom read across the below row until you find the.
Values of the chi squared distribution. Take the number of rows minus one and multiply that number by the number of columns minus one. As we mentioned above the r rows and c columns in the table give us r 1 c 1 degrees of freedom. Df 0 995 0 975 0 20 0 10 0 05 0 025 0 02 0 01 0 005 0 002 0 001.
