E eleahy Mar 2010 46 0 May 11, 2010 #1 does anyone know how to get the p value of a chi squared test? I know how to get the critical value ie (c-1)(r-1) for degrees of freedom then t df, alpha but don't know how to get p value from here

does anyone know how to get the p value of a chi squared test? I know how to get the critical value ie (c-1)(r-1) for degrees of freedom then t df, alpha but don't know how to get p value from here

Anonymous1 Nov 2009 517 130 Big Red, NY May 11, 2010 #2 Use the table... Choose the appropriate df, scroll over to the value of your test statistic, and the p-value will be 1-the subscript on the corresponding X^2.

Use the table... Choose the appropriate df, scroll over to the value of your test statistic, and the p-value will be 1-the subscript on the corresponding X^2.

E eleahy Mar 2010 46 0 May 11, 2010 #3 isnt that the test statistic or are they the same thing in chi squared tests?

Anonymous1 Nov 2009 517 130 Big Red, NY May 11, 2010 #4 eleahy said: isnt that the test statistic or are they the same thing in chi squared tests? Click to expand... Look up your test statistic. There will be a corresponding "\(\displaystyle \chi_{p}^2\)" at the top of the column. Your p-value is 1-that p subscript.... Is this clear? Example: http://www.monarchwatch.org/grafx/read/eggs/table.gif For test statistic = 1.32 and 1 df, the p-value = 1-.25 = .75. Reactions: eleahy

eleahy said: isnt that the test statistic or are they the same thing in chi squared tests? Click to expand... Look up your test statistic. There will be a corresponding "\(\displaystyle \chi_{p}^2\)" at the top of the column. Your p-value is 1-that p subscript.... Is this clear? Example: http://www.monarchwatch.org/grafx/read/eggs/table.gif For test statistic = 1.32 and 1 df, the p-value = 1-.25 = .75.