How to Perform Chi Square Test in STATA

In Stata, both the .tabulate and .tab commands conduct the Pearson's Chi-square test. The .tabulate (may be abbreviated as .tab) command produces one- or two-way frequency tables given one or two variables. The commands also can run a Chi-square test using the chi2 option:
  . tab grade gender, chi2
The above command will produce a cross-table of grade and gender and its Chi-square statistic.
When you do not have individual data, but only aggregate frequencies, use the .tabi command. You must list the frequencies of each cell with a backward slash (\) to separate a row of a table. Consider the following examples:
  . tabi 22 44 \ 34 56, chi2
  . tabi 34 45 \ 34 53 \ 34 34, chi2
  . tabi 34 45 36 \ 34 64 96, chi2
The first command conducts a Chi-square test for a 2x2 table, while the second and third commands run the test for 3x2 and 2x3 tables, respectively.

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