Table 7. Mean residuals and mean square residuals for the two models.

Sample	Ordinary L.S.			Quadratic L.S.
	µRes	%err	µSq	µRes	%err	µSq
Belgrade	0.0154	5.7	0.00079	0.0011	0.4	0.00055
Pungo (R)	–0.0078	–3.6	0.00071	–0.0033	–1.5	0.00066
Pungo (F)	–0.0046	–2.1	0.00066	0.0029	1.3	0.00065
Yorktown	0.0025	1.4	0.00061	–0.0001	–0.06	0.00060
Calvert	–0.0023	–1.2	0.00057	0.0050	2.5	0.00059
Santee	0.1572	33.2	0.0253	0.0073	1.6	0.00060
Recent	0.0784	25.4	0.0078	0.0596	19.3	0.00522