## Z-test for two proportions

Z test Calculator for two proportions | ||
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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: | ||