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Why do you use the chi-square statistic? What type of data is used with chi-square analysis?


Use of chi-square statistic




A chi-squared test, also referred to as chi-square test or \chi^2test, is any statistical hypothesis test in which the sampling distribution of the test statistic is a chi-squared distribution when the null hypothesis is true, or any in which this is asymptotically true, meaning that the sampling distribution (if the null hypothesis is true) can be made to approximate a chi-squared distribution as closely as desired by making the sample size large enough.




type of data is used with chi-square analysis