Official websites use .gov
A
.gov website belongs to an official
government organization in the United States.
Secure .gov websites use HTTPS
A lock (
) or https:// means you've safely
connected to the .gov website. Share sensitive
information only on official, secure websites.
Weights of the control group for the geographic mean PM2.5 concentrations
| Beta | Std | T | |
|---|---|---|---|
| Constant | 1.283 | 4.317 | 0.30 |
| Fujian | 4.792 | 0.351 | 13.63 |
| Guangdong | −2.495 | 0.338 | −7.38 |
| Guangxi | 1.892 | 0.183 | 10.34 |
| Jilin | 1.656 | 0.122 | 13.52 |
| Jiangxi | −1.604 | 0.238 | −6.75 |
| Zhejiang | −0.682 | 0.207 | −3.30 |
R2 = 0.990, AICC = 36.9868, F = 110.36
