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.
Control chart of proportion of women testing positive by month from 1 April 2016.
| Rule Violations for Run | |
|---|---|
| Month | Violations for Points |
| Sep 2020 | 4 points out of the last 5 above +1 sigma |
| Nov 2020 | 4 points out of the last 5 above +1 sigma |
| Dec 2020 | 4 points out of the last 5 above +1 sigma |
| 3 points violate control rules. | |
