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

Table 2

ADF unit root test for confirmed, recovery, and death cases in each country.

Country	Confirmed cases		Recovery cases		Death cases
	Level or difference order	t-test	Level or difference order	t-test	Level or difference order	t-test
KSA	1^st difference	−8.089	1^st difference	−11.463	1^st difference	−30.268
UAE	1^st difference	−5.248	1^st difference	−19.887	1^st difference	−22.284
Kuwait	1^st difference	−15.358	1^st difference	−17.381	1^st difference	−12.783
Qatar	1^st difference	−19.262	1^st difference	−9.548	1^st difference	−19.502
Bahrain	1^st difference	−19.390	1^st difference	−11.686	1^st difference	−15.366
Oman	1^st difference	−19.238	1^st difference	−18.152	1^st difference	−13.308

Note.Significant at the 0.10 level. Significant at the 0.05 level. Significant at the 0.01 level.