Calculate the margin of error for a survey or experiment. The margin of error indicates the maximum expected difference between the sample statistic and the true population parameter.
Calculate the margin of error for a survey or experiment. The margin of error indicates the maximum expected difference between the sample statistic and the true population parameter.
Enter the population standard deviation
Enter the sample size
The margin of error is the critical z-value multiplied by the standard error of the mean (σ divided by the square root of sample size n).
How this calculator works
The margin of error is the critical z-value multiplied by the standard error of the mean (σ divided by the square root of sample size n).
Common questions about this calculator
