Student Edition of Statistix10.0                         4/21/2020, 5:32:15 AM Two-Sample T Tests for Close by Exchange Exchange          N        Mean     SD      SE 0         40        51.664  73.709  11.654 1         25        19.368  18.703  3.7406 Difference                  32.296  59.131  15.076 T-Tests for Mean Difference Null Hypothesis: difference = 0 Alternative Hyp: difference ≠0                                                              Lower   Upper MethodVariances          DF       T          P     95% C.I. 95% C.I. Pooled  Equal   63      2.14     0.0360  2.170262.423 Satterthwaite     Unequal46.6     2.64     0.0113  7.667956.925 Homogeneity of Variances   DF       F          P Folded F Test    39,24   15.53   0.0000 Cases Included 65   Missing Cases 0 Cases Included 65   Missing Cases 0 |