Group Statistics N Mean Std. Std. Error Deviation Mean Have license 127 19.0472 4.37318 .38806 Have no 144 18.9375 .29405 Licence Have license 127 19.4567 4.33838 .38497 Have no 144 18.7361 3.43976 Licence ] Independent Samples Test Levene's Test t-test for Equality of Means for Equality of Variances F Sig. t df Sig. Mean Std. 95% Error Confidence Interval of the Difference Lower Upper Equal 9.814 .002 269 .819 variances assumed Equal .822 variances not assumed Equal .000 269 .129 variances 23 assumed Equal .135 variances 8 not assumed T-Test
Group Statistics N Mean Std. Deviation Std. Error Mean Have license 127 19.0472 4.37318 .38806 Have no Licence 144 18.9375 .29405 Have license 127 19.4567 4.33838 .38497 Have no Licence 144 18.7361 3.43976 ] Independent Samples Test Levene's Test for Equality of Variances t-test for Equality of Means F Sig. t df Sig. Mean Std. Error 95% Confidence Interval of the Difference Lower Upper Equal variances assumed 9.814 .002 269 .819 Equal variances not assumed .822 Equal variances assumed .000 269 .129 Equal variances not assumed .135 T-Test 8 23