Research Article
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 | 1st difference | −8.089 | 1st difference | −11.463 | 1st difference | −30.268 | UAE | 1st difference | −5.248 | 1st difference | −19.887 | 1st difference | −22.284 | Kuwait | 1st difference | −15.358 | 1st difference | −17.381 | 1st difference | −12.783 | Qatar | 1st difference | −19.262 | 1st difference | −9.548 | 1st difference | −19.502 | Bahrain | 1st difference | −19.390 | 1st difference | −11.686 | 1st difference | −15.366 | Oman | 1st difference | −19.238 | 1st difference | −18.152 | 1st difference | −13.308 |
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Note.Significant at the 0.10 level. Significant at the 0.05 level. Significant at the 0.01 level. |