The Analysis of the Incidence Rate of the COVID-19 Pandemic Based on Segmented Regression for Kuwait and Saudi Arabia

Table 2

Estimation detail of best-fitted ARIMA models.

Country	Cases	Parameter	AIC	MAE	RMSE	MAPE	Ljung–Box test		Shapiro–Wilk test
							Statistic (Q)	value	Statistic (W)	value
Kuwait	Confirmed	(6, 2, 4)	4991.1900	73.1736	101.5751	0.9026	69.9440	0.5797	0.9660	3.40E-08
Kuwait	Death	(7, 2, 2)	1525.7400	1.3833	0.3766	0.9178	56.6190	0.7881	0.9876	0.002929
Saudi Arabia	Confirmed	(7, 2, 7)	5171.0600	74.1968	139.0189	1.3841	70.6900	0.3555	0.7433	2.20E-16
Saudi Arabia	Death	(12, 2, 6)	1911.1900	1.9343	2.7787	0.6540	71.5330	0.1269	0.9375	1.28E-11