satisfaction level | Books, tutors, website at sample mean | Books, tutors, website get maximum score by students | Difference in % points | ||
Probability of reporting this level | 95% Confidence interval | Probability of reporting this level | 95% Confidence interval | ||
1 (very much dissatisfied) | 0.32% | [−0.13%, 0.78%] | 0.05% | [−0.03%, 0.14%] | −0.27 |
2 | 0.86% | [0.08%, 1.65%] | 0.14% | [−0.02%, 0.30%] | −0.72 |
3 | 3.16% | [1.50%, 4.83%] | 0.54% | [0.10%, 0.99%] | −2.62 |
4 | 18.35% | [13.85%, 22.84%] | 3.86% | [1.57%, 6.15%] | 14.49 |
5 | 62.57% | [56.33%, 68.80%] | 44.12% | [33.16%, 55.08%] | −18.45 |
6 | 13.17% | [9.37%, 16.98%] | 42.46% | [31.50%, 53.41%] | 29.29 |
7 (very much satisfied) | 1.57% | [0.47%, 2.66%] | 8.83% | [2.57%, 15.18%] | 7.26 |