Is there an association between number of hours students study and the hours they work?

T-TEST PAIRS=hrsstudy WITH hrswork (PAIRED) /ES DISPLAY ( TRUE) STANDARDIZER (SD) /CRITERIA=CI ( . 9500) /MISSING=ANALYSIS. Paired Samples Effect Sizes 95% T-Test Standardizer Point Estimate Lower Pair 1 hours of study per week - Cohen's d 15.376 -689 -.998 hours per week spent Paired Samples Statistics working Hedges' correction 15.621 -678 -.982 Mean Sid. Deviation Std. Error Mean Paired Samples Effect Sizes Pair 1 hours of study per week 15.53 8.372 1.196 95% hours per week spent 26.12 14.857 2. 122 Upper working Pair 1 hours of study per week - Cohen's d -.374 hours per week spent working Hedges' correction -.368 Paired Samples Correlations a. The denominator used in estimating the effect sizes. Significance Cohen's d uses the sample standard deviation of the mean difference. Correlation One-Sided p Two-Sided p Hedges' correction uses the sample standard deviation of the mean difference, plus a correction factor. z Pair 1 hours of study per week & 219 066 131 hours per week spent working Paired Samples Test Paired Differences 95% Confidence Interval of the ... Std. Deviation Std. Error Mean Lower Mean 15.008 -10.592 15.376 2.197 Pair 1 hours of study per week - hours per week spent working Paired Samples Test Significance Paired . 95% Confidence Interval of the .. One-Sided p Two-Sided p Upper <.001 pair hours of study per week spent working page>