Table 4.

Tukey post hoc honest significant difference multiple comparison values for flexural strength (Group 3)

(I) Group	(J) Group	Mean difference (I−J)	SE	Significance	95% CI
					Lower bound	Upper bound
Subgroup A	Subgroup B	−6.91833*	0.52114	0.000	−8.1971	−5.6396
	Subgroup C	−9.99833*	0.52114	0.000	−11.2771	−8.7196
Subgroup B	Subgroup A	6.91833*	0.52114	0.000	5.6396	8.1971
	Subgroup C	−3.08000*	0.52114	0.000	−4.3588	−1.8012
Subgroup C	Subgroup A	9.99833*	0.52114	0.000	8.7196	11.2771
	Subgroup B	3.08000*	0.52114	0.000	1.8012	4.3588

*The mean difference is significant at the 0.05 level. SE: Standard error, CI: Confidence interval