Welch's t-test: Difference between revisions

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@@ Line 864: / Line 864: @@
         m1:=Mean(x),m2:=Mean(y),
         v1:=Variance(x),v2:=Variance(y),
-        t,nu,p,X;
+        t,nu,p;
   t:=(m1-m2)/sqrt(v1/n1+v2/n2);
   nu:=(v1/n1+v2/n2)^2/(v1^2/(n1^2*(n1-1))+v2^2/(n2^2*(n2-1)));