Dear devs, Chi-squared test takes degrees of freedom to be one fewer than the sample count. https://commons.apache.org/proper/commons-math/apidocs/src-html/org/apache/commons/math3/stat/inference/ChiSquareTest.html#line.154
Should be two fewer, right? http://courses.wcupa.edu/rbove/Berenson/10th%20ed%20CD-ROM%20topics/section12_5.pdf d.f. = k - p - 1 k is sample count p is # parameters being estimated (typically 1) One fewer is typically for T-test, I think. Not a statistician, thanks for your time, sorry if this is the wrong agent, first time here, -A
