relar5.sas

SAS for Windows统计分析系统教程,里面有源码

data relar5;
  b=((30+20)-((168*45)/336+(110*31)/220))**2;
  a=(168*168*45*291)/(336*336*(336-1))+(110*110*31*189)/(220*220*(220-1));
  w=b/a;
  chis=1-probchi(w,1);
proc print;
run;