The other chi-square tests and statistics described in this section are ... cell is less than or equal to that of the observed table. A small left-sided p-value supports the alternative hypothesis ...

PROC FREQ computes a chi-square statistic for each region. The chi-square statistic is significant at the .05 level for region 2 (p<=.05) but not for region 1, indicating a significant departure from ...

The chi-square value is calculated using the following formula: Using this formula, the difference between the observed and expected frequencies is calculated for each experimental outcome category.

A statistical test that allows one to determine whether observed quantities of a specific characteristic differed from the expected value purely by chance.