Table 3.

Results of Preferred Model with OLS estimator in each of the Nine Curve Estimation models: COVID-19 Discharged Cases.

Models	Form	Adj.R2	DW-test		SW-test
			Value	P-value	Value	P-value
Linear	Quartic	0.9925	0.6965	4.69e-009 ***	0.9724	0.3819
Logarithm	Simple+	0.5613	0.0656	7.029e-01***	0.8965	0.001***
Inverse	Quartic	0.7682	0.3143	1.798e-010***	0.9733	0.4078
Power	Simple+	0.8857	0.2762	3.954e-012***	0.8803	0.0003***
Compound	Quartic	0.9918	1.448	0.005***	0.9503	0.0613*
S-Curve	Quartic	0.9826	1.172	0.0007***	0.9128	0.0031***
Growth	Quartic	0.9918	1.4478	0.005***	0.0613	0.0613*
Exponential	Quartic	0.9918	1.4478	0.005***	0.0613	0.0613*
Logistic(u=350)	Quartic	0.9916	1.3065	0.0010***	0.9694	0.3003

NOTE: (i) Bold implies most preferred of the nine models.

(ii) + implies exalt multicollinearity made other forms of the variable to be omitted.

(iii) The maximum COVID-19 discharged cases for the period of study was 319.