| N | Mean | Std. Deviation | Std. Error | 95% Confidence Interval for Mean | Minimum | Maximum | |
Lower Bound | Upper Bound | |||||||
Ketac | 16 | 11.42 | 2.8683 | 0.7171 | 9.890 | 12.947 | 6.6 | 16.1 |
RelyX | 16 | 3.22 | 0.9275 | 0.2319 | 2.725 | 3.713 | 1.8 | 6.0 |
Unicem 2 | 16 | 7.39 | 2.1728 | 0.5432 | 6.230 | 8.545 | 2.5 | 10.3 |