Levene's Test for Equality of Variances | t-test for Equality of Means | ||||||||
---|---|---|---|---|---|---|---|---|---|
F | Sig | t | df | Sig. (2-tailed) | Mean Difference | Std. Error Difference | 95% Confidence Interval of the Difference | ||
Lower | Upper | ||||||||
Equal variances assumed | 97.217 | .000 | 12.286 | 538 | .000 | − .7841 | .0638 | − .9094 | − .6587 |
Equal variances not assumed | 12.286 | 457.118 | .000 | − .7841 | .0638 | − .9095 | − .6587 |