| Debt in 2011 | Debt in 2007 |
| 4422 | 2939 | | Test the Hypotheses Below |
| 4266 | 2812 |
| 4184 | 3198 | | Null Hypothesis: Mean Student Debt in 2011 is equal to Mean Student Debt in 2007 |
| 4718 | 3032 | | Alternative Hypothesis: Mean Student Debt in 2011 is not equal to Mean Student Debt in 2007 |
| 3443 | 3759 |
| 4373 | 2675 | | Alpha Level = 0.05 |
| 3751 | 3148 |
| 3319 | 2743 |
| 4451 | 3264 |
| 3675 | 3346 |
| 3335 | 3357 |
| 3949 | 3103 |
| 3611 | 2856 |
| 3929 | 2903 |
| 3994 | 3320 |
| 4881 | 3139 |
| 4404 | 2784 |
| 4542 | 3329 |
| 4353 | 2430 |
| 4574 | 2932 |
| 3529 | 2500 |
| 4141 | 2617 |
| 2852 | 3072 |
| 2985 | 2310 |
| 4440 | 2120 |
| 3464 | 2344 |
| 3264 | 2830 |
| 4835 | 1873 |
| 3992 | 2742 |
| 3651 | 2777 |
| 4103 | 2601 |
| 3583 | 2500 |
| 4308 | 2525 |
| 4070 | 2837 |
| 4133 | 3245 |
| 3424 | 2368 |
| 3820 | 3339 |
| 3845 | 3080 |
| 3791 | 2865 |
| 3812 | 2617 |
| 3722 | 3634 |
| 3099 | 2470 |
| 3421 | 2908 |
| 3886 | 2675 |
| 4439 | 2858 |
| 4136 | 2942 |
| 3865 | 3101 |
| 3991 | 3240 |
| 3795 | 2926 |
| 3718 | 2856 |