The Standard Deviation of Mean (SDOM) calculator computes the standard deviation of the mean(σM) based on the standard deviation (σ) and the number of samples (N):
INSTRUCTIONS: Enter the following:
Standard Deviation of the Mean (SDOM): The calculator returns the standard deviation of the mean(σM).
The standard deviation of the mean (SDOM) is sometimes also known as the standard error of the mean (SEM). This quantity is useful in that it helps quantify the uncertainty in the estimate of the mean.
`s_m = s/(sqrtN)`
To compute the standard deviation and sample size, use the Simple Stats Calculator [CLICK HERE]to enter your data and see the observational statistics which include both the standard deviation and number of samples.