| Country | Confirmed cases | Recovery cases | Death cases | kth EWMA-ARIMA (p,d,q) | RMSE; MAPE | AIC | kth EWMA-ARIMA (p,d,q) | RMSE; MAPE | AIC | kth EWMA-ARIMA (p,d,q) | RMSE; MAPE | AIC |
| KSA | 3-(3,1,2) | 21.54; 11.46 | 3960.77 | 5-(2,1,3) | 22.73; 8.79 | 4534.14 | 5-(2,1,2) | 1.37; 25.67 | 1068.84 | UAE | 5-(2,1,3) | 264.67; 7.54 | 3823.02 | 5-(2,1,3) | 519.54; 18.04 | 4394.61 | 4-(0,1,4) | 1.760; 26.93 | 751.94 | Kuwait | 2-(2,1,2) | 73.60; 14.22 | 4019.70 | 3-(2,1,2) | 70.44; 14.80 | 3731.64 | 4-(2,1,2) | 0.882; NA | 782.64 | Qatar | 2-(1,1,3) | 32.30; 11.04 | 3833.43 | 2-(2,1,2) | 30.27; 16.86 | 4602.22 | 3-(1,1,1) | 0.430; NA | 646.16 | Bahrain | 5-(4,1,1) | 61.21; 13.83 | 3351.47 | 3-(3,1,2) | 63.38; 18.87 | 3764.46 | 5-(1,1,1) | 0.849; NA | 429.42 | Oman | 2-(1,1,2) | 40.74; 17.60 | 4141.33 | 2-(1,1,3) | 86.71; 46.50 | 4261.73 | 4-(1,1,1) | 1.192; NA | 998.80 |
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