Table 2.

Maximum likelihood estimates and 95% CI of parameters estimated from the model.

Parameters	Estimate	95% CI
${\mu }_2,{\vartheta }_2$	0.81	(0.80,0.82)
${\mu }_3,{\vartheta }_3$	0.68	(0.62,0.7)
${\mu }_4,{\vartheta }_4$	0.59	(0.55,0.60)
${\mu }_5,{\vartheta }_5$	0.15a	/
$\alpha$	1.42	(1.41,1.43)
$\epsilon$	0.04	(0.03,0.16)
$k$	72	(66,78)

^aSince none of the selected cities has entered the Level IV response yet, We assumed the value of ${\mu }_5$ and ${\vartheta }_5$ according to the content of the policy.