Margin of Error Calculator
margin_of_errorRead-only
Compute the margin of error for a survey sample at the 90, 95, or 99 percent confidence level, assuming maximum variance proportions.
Input Schema
TableJSON Schema
| Name | Required | Description | Default |
|---|---|---|---|
| n | Yes | Sample size, above zero | |
| confidence | No | Confidence level percent (default 90) |