Development of a Relationship between Pavement Condition Index and International Roughness Index in Rural Road Network

Table 3

ANOVA for regression and parameter estimates with one predictor variable.

	Model	Sum of squares	df	Mean square	F	value	R-Sq	Adj R-Sq
a	Regression	1.546	1	1.546	5341.007	0.0001	0.75	0.74
	Residual	.526	1817	0.000
	Total	2.072	1818
b	Regression	15.225	1	15.225	1195.996	0.0001	0.76	0.75
	Residual	4.837	380	0.013
	Total	20.062	381
c	Regression	49.485	1	49.485	478.941	0.0001	0.59	0.58
	Residual	34.510	334	0.103
	Total	83.995	335