Table 2a.
Analysis of variance for PM2.5.
| Sum of Squares | df | Mean Square | F | Sig. | |
|---|---|---|---|---|---|
| Between Groups | 158461.664 | 3 | 52820.555 | 16.815 | .000 |
| Within Groups | 75392.356 | 24 | 3141.348 | ||
| Total | 233854.020 | 27 |
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.