Chi Square Low Sample Size. There is nothing magical about a sample size of 1000 its just a nice round number that is well within the range where an exact test chi-square test and Gtest will give almost identical P values. The shape depends on the degrees of freedom.
Chi Square Test With High Sample Size And Unbalanced Data Cross Validated from stats.stackexchange.com
If we have two categorical variables both of them. Nov 27 2019 In this case the chi-square value comes out to be 325. With small sample sizes chi-square is not accurate with or without Yates correction.
The formula for chi-square can be written as.
It is not symmetric. Four other tests are shown on the table. The footnote for this statistic pertains to the expected cell count assumption ie expected cell counts are all greater than 5. In the second column.
