C. # of students B. x Distribution 0 V VIIICIT Take Quiz CLIIA distribution? A. T 4 -2 JuulTUUTU TUTTtial 5% T T T 4 6 8 10 12 14 16 18 20 22 24 26 28 16.9 x 50% 10% 10% 5% 15% exam score F C B Mean Median Mode Exit 0.0 0.1 0.3 0.2 0.4 D. 34.1% 34.1% 2.1% 2.1% 0.1% 13.6% 13.6% 0.1% -30 -20 -10 0 10 20 30 Household income in thousands Independent Samples Test Levene's Test for Equality of Variances t-test for Equality of Means F Sig. t df Equal variances assumed 2.180 .140 -2.365 693 Sig. (2-tailed) .018 Mean Difference -6.11623 Std. Error Difference 2.58573 95% Confidence Interval of the Lower Difference -11.19304 Upper -1.03943