Table 3.

Comparison of absorbed doses of two units (Planmeca and Soredex), according to T test

Level	Levene’s test for equality of variances		T test for equality of means
	F	p	t	p
First	0.039	0.849	1.794	0.111
Second	0.329	0.582	0.326	0.753
Third	0.505	0.498	0.558	0.592