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.
The sample size required to detect the top 75% and 100% of families for each model with skewed family contributions.
| Model | Proportion of families selected (%) | |||
|---|---|---|---|---|
| 75 | 100 | |||
| Sample size | Sample size | |||
| Min | Max | Min | Max | |
| S1 | 290 | 1,640 | 3,900 | 9,200 |
| S4 | 600 | 2,750 | 4,700 | 9,700 |
| S50 | 4,000 | 5,900 | 9,800 | 26,800 |
