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Chi-square test
A chi-square test is any statistical hypothesis test in which the test statistic has a chi-square distribution when the null hypothesis is true, or any in which the probability distribution of the test statistic (assuming the null hypothesis is true) can be made to approximate a chi-square distribution as closely as desired by making the sample size large enough.
Specifically, a chi-square test for independence evaluates statistically significant differences between proportions for two or more groups in a data set.
For better understanding, please visit the sites as tables, values can not be displayed here.
http://en.wikipedia.org/wiki/Chi-square_distribution
http://en.wikipedia.org/wiki/Hypothesis_test
http://faculty.vassar.edu/lowry/csfit.html
http://www.stat.yale.edu/Courses/1997-98/101/chisq.htm
http://www.statpac.com/statistics-calculator/counts.htm
A chi-square test is any statistical hypothesis test in which the test statistic has a chi-square distribution when the null hypothesis is true, or any in which the probability distribution of the test statistic (assuming the null hypothesis is true) can be made to approximate a chi-square distribution as closely as desired by making the sample size large enough.
Specifically, a chi-square test for independence evaluates statistically significant differences between proportions for two or more groups in a data set.
For better understanding, please visit the sites as tables, values can not be displayed here.
http://en.wikipedia.org/wiki/Chi-square_distribution
http://en.wikipedia.org/wiki/Hypothesis_test
http://faculty.vassar.edu/lowry/csfit.html
http://www.stat.yale.edu/Courses/1997-98/101/chisq.htm
http://www.statpac.com/statistics-calculator/counts.htm
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