The formula for standard error of the mean is equal to the ratio of the standard deviation to the root of sample size. An online standard error calculator helps you to calculate the sample mean dispersion from the given raw data set or from the sample mean for statistical data analysis. The standard error of the mean is the standard deviation of the sample mean estimate of a population mean.
The SE is the entire value of s sqrt n.
By using this function you can easily calculate how much a certain subset of data deviates from the mean value. How to find standard error. STDEVS function returns the standard deviation of a sample. Finally divide the standard deviation obtained by the square root of the number of measurements n to get the standard error of your estimate.