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\nConfidence Interval Calculator Using Proportion and Margin of Error
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Calculate the confidence interval for a population proportion with step-by-step clarity
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Confidence Interval Calculator
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Results
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How This Works
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This calculator finds the confidence interval for a population proportion using the following formula:
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$$CI = \\hat{p} \\pm Z \\sqrt{\\frac{\\hat{p}(1-\\hat{p})}{n}}$$
\nwhere $\\hat{p}$ is the sample proportion, $Z$ is the z-score for the desired confidence level, and $n$ is the sample size.
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\n\n\n\n\n# **FREE ONLINE CONFIDENCE INTERVAL CALCULATOR USING PROPORTION AND MARGIN OF ERROR**\n\nCalculating the **confidence interval for a population proportion** is a fundamental skill in statistics, essential for making reliable inferences about populations based on sample data. Whether you’re conducting market research, public health surveys, or quality control studies, understanding how to estimate population parameters with a specific degree of confidence