TY - JOUR TI - The $\chi^2$ Test of Goodness of Fit AU - William G. Cochran JO - The Annals of Mathematical Statistics PY - 1952 VL - 23 IS - 3 DO - 10.1214/aoms/1177729380 UR - https://doi.org/10.1214/aoms/1177729380 ER -