Compound Grey-Logistic Model and Its Application

Table 7

Statistics of model parameter estimation for Case 3.

Model	Variable	Coefficients	Std. error	t stat	-value
Grey	b	53379.956	7743.017	6.894	<0.001
	a	−0.102	0.006	−16.958	<0.001
Logistic	γ1	0.153	0.074	2.059	0.055
	γ2	<0.001	<0.001	−0.933	0.364
Grey-logistic	γ1	0.107	<0.001	4.975  1013	<0.001
	γ2	<0.001	<0.001	1.078	0.297