Confidence Interval for Difference of Means (Z)
| Confidence Interval Calculator for Difference of means | ||
|---|---|---|
| Sample 1 | Sample 2 | |
| Sample Mean | ||
| Sample Size | ||
| Population Standard Deviation | ||
| Confidence Level ($1-\alpha$) | ||
| Results | ||
| Standard Error of Diff. of Means: | ||
| Z-critical value: ($Z_{\alpha/2}$) | ||
| Margin of Error: ($E$) | ||
| Lower Confidence Limits: | ||
| Upper Confidence Limits: | ||
