Group Statistics Std. Std. Error review N Mean Deviation Mean final No 35 61.40 5.802 981 Yes 70 64.21 6.840 .817 Independent Samples Test Levene's Test for Equality of Variances t-test for Equality of Means 95% Confidence Interval of Sig. (2 - Mean Std. Error the Difference F Sig. of tailed) Difference Difference Lower Upper final Equal variances 708 402 -2.087 103 039 2.814 assumed 1.349 -5.489 -.139 Equal variances not -2.204 78.898 030 2.814 1.277 -.273 assumed -5.356