Margin of Error Calculator

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Sample Size:

Confidence Level (%):

Sample Proportion (%):

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Results

Margin of Error

± 3.099%

With 95.0% confidence, the true population proportion is within 3.099% of your sample proportion.

Confidence Interval: 46.9% - 53.1%

Sample Size: 1,000

Confidence Level: 95%

Sample Proportion: 50%

Interpretation: We can be 95.0% confident that the true population proportion falls between 46.9% and 53.1%.