8: Sample Size to Estimate a Population Proportion

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Sample Size to Estimate a Population Proportion

This calculator computes the sample size needed to estimate a population proportion. Please report the error to Dr. Jessica Kuang at jkuangATvcccd.edu.

To learn how to use this calculator, please watch a short video here.

Input

Fill in the estimation for P (or choose no estimation for P), the error bound and the confidence level, then hit "Calculate " and the needed sample size will be calculated for you.

No Estimate for p

Have Estimate for p

Estimate for p (enter a decimal):

Error Bound (enter a decimal):

Confidence Level (enter a decimal):

Output

Sample Size (n):

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