ANOVA Model
IQ ~ Gewest
means	105.357	5.489	0.566

ANOVA Statistics
	Df	Sum Sq	Mean Sq	F value	Pr(>F)
Gewest	2	240.945	120.473	0.447	0.643
Residuals	37	9975.83	269.617

Tukey Honest Significant Difference Comparisons
	diff	lwr	upr	p adj
1-0	5.489	-9.952	20.93	0.664
2-0	0.566	-14.875	16.007	0.996
2-1	-4.923	-20.647	10.801	0.727

Levenes Test for Homogeneity of Variance
	Df	F value	Pr(>F)
Group	2	6.19	0.005
	37