Plus Four Confidence Interval for Proportion-Calculator
Use this calculator to compute the plus four confidence interval for population proportion.
Confidence Interval Calculator for proportion | |
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Sample Size ($n$) | |
Number of successes ($k$) | |
Confidence Level ($1-\alpha$) | |
Results | |
Estimate of proportion: ($\hat{p}$) | |
Standard Error of proportion: ($SE$) | |
Z-critical value: ($Z_{\alpha/2}$) | |
Margin of Error: ($E$) | |
Lower Confidence Limits: | |
Upper Confidence Limits: | |
Reference
You can read step by step tutorial on Plus Four Confidence Interval for Proportion, tutorial will help you to understand step by step procedure to construct a plus four confidence interval for population proportion and confidence interval for proportion examples.