The Chi Square TestO–E)
chi-square test n. A test that uses the chi-square statistic to test the fit between a theoretical frequency distribution and a frequency distribution of observed data for which each observation may fall into one of several classes. American Heritage® Dictionary of the English Language, Fifth ...
Then, you compare the test statistic to a theoretical value from theChi-square distribution. The theoretical value depends on both the alpha value and the degrees of freedom for your data. Visit the pages for each test type for detailed examples....
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本章要介紹的Chi Square (χ2) test(卡方測定)大概是社會科學研究中,最常看到的一種假設測定方法。這是因為此測定方法相當容易符合假設測定第一個步驟─基本假定設定─的要求。此測定方法是兩個名目尺度變項間之假設測定的方法。因此在level of measurement 的要求方面是最基本的nominal level of measurement。這名目...
You may have heard of McNemar tests as a repeated measures version of a chi-square test of independence. This is basically true, but they test different hypotheses.
Find the value of the chi-square test statistic for the goodness-of-fit test. A firm that manufactures engines for racing boats gathers data from all of its plants. The accompanying table to the left gives the distribution of the life span of...
It can also be used to test the goodness of fit between an observed distribution and a theoretical distribution of frequencies. Formula for a Chi-Square (χ2) Statistic χc2=∑(Oi−Ei)2Eiwhere:c=Degrees of freedomO=Observed value(s)E=Expected value(s)\begin{aligned}&\chi^2_c = \su...