10-08-2012, 01:04 PM
Chi-Square Table
Chi square.docx (Size: 37.11 KB / Downloads: 27)
Like the Student's t-Distribution, the Chi-square distribution's shape is determined by its degrees of freedom. The animation above shows the shape of the Chi-square distribution as the degrees of freedom increase (1, 2, 5, 10, 25 and 50). For examples of tests of hypothesis that use the Chi-square distribution, see Statistics in crosstabulation tables in Basic Statistics and Tables as well as Nonlinear Estimation . See also, Chi-square Distribution. As shown in the illustration below, the values inside this table are critical values of the Chi-square distribution with the corresponding degrees of freedom. To determine the value from a Chi-square distribution (with a specific degree of freedom) which has a given area above it, go to the given area column and the desired degree of freedom row. For example, the .25 critical value for a Chi-square with 4 degrees of freedom is 5.38527. This means that the area to the right of 5.38527 in a Chi-square distribution with 4 degrees of freedom is .25.