Group Statistics Gender N Mean Std. Deviation Std. Error Mean Satisfaction Male 21 48.4286 10.87461 2.37303 Female 21 32.2381 8.89328 1.94067 Independent Samples Test Levene's Test for Equality of Variances t-test for Equality of Means 95%% Confidence Interval of the Significance Std. Enor Difference F Sig t df One-Sided p Two-Sided p Mean Difference Difference Lower Upper Satisfaction Equal variances assumed 1.089 303 5.281 40 <.001 equal variances not assumed independent samples effect sizes confidence interval standardizer point estimate lower upper satisfaction cohen d hedges correction glass delta a. the denominator used in estimating sizes. uses pooled standard deviation plus a factor. sample of control group>