14
Mar
Chi Square Graph Generator. The Yates continuity correction is designed to make the chi-square approximation better. Lets say you are a college professor. Or have you found something significant. Figure 1 Chart of chi-square distributions.
But is that just random chance.
In such situations the appropriate test is the chi-square test of goodness of fit or the chi-square test of independence for. Categories with a large difference between. As df grows larger the fat part of the curve shifts to the right and the graph of the chi-square distribution becomes more like the graph of a normal distribution. The following are graphs of the pdf with degrees of freedom df 5 and 10. Users enter the degrees of freedom between 1 and 20 inclusive upon opening the page. Minitab calculates each categorys contribution to the chi-square statistic as the square of the difference between the observed and expected values for a category divided by the expected value for that category.