GiventheSPSSoutputbelow,whichofthefollowingstatementsistrue?Assumealpha=0.05.

Independent 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. dif Sig. (2-tailed) Difference |Difference Lower Upper ExamScore Equal variance 678 .421 .305 18 .764 1.20000 3.92994 7.05650 9.45650 assumed Equal variance 17.601 764 1.20000 3.92994 -7.06993 9.46993 not assumed .305