A New Robust Diagnostic Plot for Classifying Good and Bad High Leverage Points in a Multiple Linear Regression Model

Table 10

Standard errors of regression coefficients for Aircraft data set.

Variables	Original data		Regular data
			⁢Remove only the suspect BLP detected by OLS-MD plot; case		⁢Remove only the suspect BLP detected by LMS-RMD plot; cases ,		⁢Remove only the suspect BLP detected by MGt-DRGP plot; cases , , and
	Estimate	SE	Estimate	SE	Estimate	SE	Estimate	SE
Aspect. ratio	−3.853	1.763	−3.272	1.191	−3.049	0.919	−3.287	0.850
Life to drag ratio	2.488	1.187	1.873	0.808	1.210	0.649	1.404	0.602
Weight of the plane	0.003	0.0005	0.002	0.0004	0.001	0.0004	0.001	0.0004
Max. thrust	−0.002	0.0005	−0.001	0.0004	−0.001	0.0003	−0.001	0.0003
Constant	−3.791	10.116	4.621	7.023	9.501	5.578	10.804	5.148