Table 2.

Unit root test (Stationarity test for the Covid 19 confirmed cases).

Augmented Dickey-Fuller Test
Country	Transformation	Dickey-Fuller	Lag order	p-value
SA	Level	1.9046	4	0.99
	Difference 1	−7.1958	4	0.01∗
	Difference 2	−8.3223	4	0.01∗
NIGERIA	Level	−3.0307	4	0.1491
	Difference 1	−7.235	4	0.01∗
GHANA	Level	−2.831	4	0.2319
	Difference 1	−6.2974	4	0.01∗
EGYPT	Level	−0.91781	4	0.9474
	Difference 1	−7.4097	4	0.01∗

∗ significant and thus stationary at that level.