Consider the following printout:

Two-Sample T Tests for Size by Location Location N Mean SD SE 1 25 3102.4 1407.3 281.45 2 25 3721.4 2017.1 403.42 Difference -619.00 1739.1 491.90 T-Tests for Mean Difference Null Hypothesis: difference = 0 Alternative Hyp: difference 0 Lower Upper Method Variances DF T P 95% C.I. 95% C.I. Pooled Equal 48 -1.26 0.2143 -1608.0 370.03 Satterthwaite Unequal 42.9 -1.26 0.2151 -1611.1 373.08 Homogeneity of Variances DF F P Folded F Test (two-sided) 24,24 2.05 0.0841 Cases Included 50 Missing Cases 0