Table 10.

ANOVA analysis of the response surface model for Tamilnadu state

Source	df	Adjust sum of squares	Adjust mean square	F value	P-value
Linear	1	4,065,620	4,065,620	7.07	0.001
Population density	2	1,537,203,955	768,601,978	7.80	0.002
Total population	1	9,815,545	9,815,545	0.10	0.754
Population density*total population	1	1,527,388,410	1,527,388,410	15.51	0.001
Error	1	1,944,163,843	1,944,163,843	19.74	0.000
Lack of fit	1	28,928,262	28,928,262	2.29	0.290
Pure error	1	28,928,262	28,928,262	1.26	0.041
Total	31	3,053,053,188	98,485,587	×	×