Two-Sample T Tests for Size by Location Location N Mean SD SE 2 25 967 .36 284.81 56. 962 25 917 . 44 258 . 44 51 . 689 Difference 49 . 920 271 .95 76. 918 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 0 . 65 0. 5194 -104.73 204.57 Satterthwaite Unequal 47 .6 0 . 65 0. 5195 -104.77 204.61 Homogeneity of Variances DF F P Folded F Test 24,24 1.21 0 . 3190 Cases Included 50 Missing Cases 0