Modeling of the COVID-19 Cases in Gulf Cooperation Council Countries Using ARIMA and MA-ARIMA Models

Table 9

Estimated parameters and their standard errors of the best models among the classical ARIMA and k^th MA-ARIMA fitting confirmed cases in each country.

Country	Model	Coeff.	AR				MA
			KSA	2^nd WMA-ARIMA (2,1,3)	Value	0.015^1	−0.723^3	-	-	0.370^3	0.704^3	0.510^3	-
s.e.	0.008	0.0753			-	-	0.072	0.067	0.046	-
Kuwait	4^th WMA-ARIMA (3,1,2)	Value	1.336^3	−1.145^3	0.145^2	-	−1.090^3	0.895^3	-	-
		s.e.	0.070	0.083	0.062	-	0.0416	0.0357	-	-
Bahrain	5^th EWMA-ARIMA (4,1,1)	Value	−0.625^3	−0.171^3	0.059	0.253^3	0.549^3	-	-	-
		s.e.	0.162	0.064	0.068	0.052	0.164	-	-	-
Oman	4^th WMA-ARIMA (2,1,2)	Value	1.110^3	−0.790^3	-	-	−0.877^3	0.754^3	-	-
		s.e.	0.083	0.073	-	-	0.091	0.063	-	-

Note.¹Significant at the 0.10 level. ²Significant at the 0.05 level. ³Significant at the 0.01 level.