# 11: The Chi-Square Distribution

- Page ID
- 4616

- 11.3: Goodness-of-Fit Test
- The Goodness-of-Fit hypothesis test, you determine whether the data "fit" a particular distribution or not. For example, you may suspect your unknown data fit a binomial distribution. You use a chi-square test (meaning the distribution for the hypothesis test is chi-square) to determine if there is a fit or not. The null and the alternative hypotheses for this test may be written in sentences or may be stated as equations or inequalities.