Is the difference in systolic blood between male and female participants statistically significant? Independent Samples Test Levene's Test for Equality of Variances t-test for Equality of means 95% CI of the difference Significance F Sig t df One -sided p Two-sided p Mean Difference Std. Error Difference Lower Upper Sbp Equal variances assumed 175 676 5.142 1550 <.001 <.001 4.935 .960 3.052 6.817 Equal variances not assumed 5.142 1545.762 <0.001 <.001 4.935 .960 3.052 6.817