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