T-test

T-Test [DataSet0] Group Statistics Std. Error Class N Mean Std. Deviation Mean Quiz1 1.00 5.6000 2.19089 97980 2.00 5.8000 1.92354 86023 Independent Samples Test Levene's Test for Equality of Variances i-test for Equality of Means 95% Confidence Interval of the Mean Std. Error Difference Sig. of Sig. (2-tailed) Difference Difference Lower Upper Quiz1 Equal variances .011 .921 -.153 8 assumed 882 -.20000 1.30384 -3.20666 2.80666 Equal variances not assumed -.153 7.868 882 -.20000 1.30384 -3.21545 2.81545