理论模型

C

P

精确等级

第1季度

${\widehat{y}}^{\left(1\right)}\left(t\right)=648.5982{\text{e}}^{0.2366\left(t-1\right)}-618.5982$

0.276

100.0%

1级

第2季度

${\widehat{y}}^{\left(1\right)}\left(t\right)=989.7316{\text{e}}^{0.2396\left(t-1\right)}-959.7316$

0.327

91.67%

1级

第3季度

${\widehat{y}}^{\left(1\right)}\left(t\right)=1076.1286{\text{e}}^{0.252403\left(t-1\right)}-1046.1286$

0.460

91.67%

2级

第4季度

${\widehat{y}}^{\left(1\right)}\left(t\right)=1027.5545{\text{e}}^{0.2934\left(t-1\right)}-997.5545$

0.761

66.67%

4级