This calculator finds the standard error of the mean of a given set of numbers using the following formula:
Standard error of the mean = s / √n
where s is the sample standard deviation and n is the sample size.
To find the standard error of the mean, simply enter the comma-separated values of the dataset in the box below and then click the “Calculate” button.
Standard error = 4.347961
Sample standard deviation (s) = 11.503623
Sample size (n) = 7
Standard error = 11.503623 / √7 = 4.347961