Table 3.

Results of analysis for log(Y) regression

Variable	Df	Sum sq.	Mean sq.	F-value	p-value
S	1	30.06	30.058	247.798	< 2e−16
S2	1	8.03	8.034	66.234	1.68e−15
H	49	41.08	0.838	6.912	< 2e−16
R	1	1.04	1.041	8.582	0.0035
H * R	47	15.31	0.326	2.686	2.57e−08
Residual	745	90.37	0.121