Pooled Two Sample T Test Formula. The formula for the pooled estimator of σ 2 is. Two sample assuming equal variances from the data data analysis menu.
Therefore this pooled variance t procedure might not be the most adequate for the situation. This is equal to the denominator of t in theorem 1 if b true default and equal to the denominator of t in theorem 1 of two sample t test with unequal variances if b false. In statistics it appears most often in the two sample t test which is used to test whether or not the means of two populations are equal.
Then our t score formula works just fine.
The formula to calculate a pooled standard deviation for two groups is as follows. In this case df 7 7 2 12. Pooled variance t procedure in ms excel. Therefore this pooled variance t procedure might not be the most adequate for the situation.
