Z-test for two proportions
| Z test Calculator for two proportions | ||
|---|---|---|
| Sample 1 | Sample 2 | |
| Sample size | ||
| No. of Successes | ||
| Level of Significance ($\alpha$) | ||
| Tail | Left tailed Right tailed Two tailed | |
| Results | ||
| sample proportions: | ||
| pooled estimate of proportion: | ||
| Standard Error of Diff. of prop.: | ||
| Test Statistics Z: | ||
| Z-critical value(s): | ||
| p-value: | ||
