. 2021 Feb 22;49(8):2124–2136. doi: 10.1080/02664763.2021.1889998

Table 7.

Regression coefficients and SMSE.

coef.	${\hat{α}}^{P M L E}$	${\hat{α}}^{P R R E}$	${\hat{α}}^{P L E}$	${\hat{α}}^{P M R T E}$
${\hat{α}}_{0}$	−0.4060	−0.1675	−0.2555	−0.1641
${\hat{α}}_{1}$	0.5688	0.3799	0.4789	0.3751
${\hat{α}}_{2}$	0.1654	0.1705	0.1665	0.1708
${\hat{α}}_{3}$	−0.0135	−0.0153	−0.0147	−0.0153
SMSE	1.0290	0.2727	0.4320	0.1422
MSPE	6.5468	5.7491	5.9448	5.6133