Table 3.
The best estimating formula for an unknown distribution.
| Sample Size: | n ≤ 15 | 15 <n ≤ 25 | 25 <n ≤ 70 | 70 <n |
| Estimate Mean | Formula (5) | Median | ||
| Estimate Standard Deviation | Formula (16) | Range/4 | Range/6 | |
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.