Table 1.
Independent samples t-test of parent involvement by the school.
| Annual Household Income | t | df | |
| High Income | 5.6 | 14.89*** | 47.98 |
| Low Income | 1.5 |
Note. p<.05*, p<.01**, p<.001***
The mean for high-income was 5.6 out of 10, and the mean for the low-income score was 1.5 out of 10. The T-test value was 14.89, which is significant at the .001 level. Therefore, the mean annual household incomes are significantly different.