Group Statistics Was R born in this Std. Error country N Mean Std. Deviation Mean Highest year of school YES 2043 13.89 2.714 060 completed NO 301 12.68 4.205 .242Independent Samples Test Levene's Test for Equality of Variances t-test for Equality of Means 95% Confidence Interval of the Significance Mean Std. Error Difference F Sig df One-Sided p Two-Sided p Difference Difference Lower Upper Highest year of school Equal variances 87.911 <.001 completed assumed equal variances not .250 .719>