This calculator will compute the confidence interval for the difference between two population proportions with a specified level of confidence. Simply input the number of successes and sample size for each group, as well as the desired confidence level, and click the calculate button.
A confidence interval for the difference in proportions provides a range of values that is likely to contain the true difference between two population proportions with a certain level of confidence.
Formula:
Where:
Interpretation: A 95% confidence interval means that if we repeated this sampling process many times, about 95% of the intervals would contain the true difference between population proportions.
This calculator will compute the confidence interval for the difference between two population proportions with a specified level of confidence. Simply input the number of successes and sample size for each group, as well as the desired confidence level, and click the calculate button.
A confidence interval for the difference in proportions provides a range of values that is likely to contain the true difference between two population proportions with a certain level of confidence.
Formula:
Where:
Interpretation: A 95% confidence interval means that if we repeated this sampling process many times, about 95% of the intervals would contain the true difference between population proportions.
