how to calculate standard error

STDEV assumes that its arguments are a sample of the population. Learn what the standard error of the mean is how to calculate it and how it varies from other functions such as the standard deviation and confidence intervals.

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. Arguments can either be numbers or names arrays or references that contain numbers. Record the number of measurements n and calculate the sample mean μ. The equation for the standard error of the mean is the sample standard deviation divided by the square root of the sample size. Use this Standard Error Calculator to calculate the standard error of the mean for the numbers you have given.

The standard deviation is calculated using the n-1 method. To calculate the standard error follow these steps. If your data represents the entire population then compute the standard deviation using STDEVP. The below solved example for to estimate the sample mean dispersion from the population mean using the above formulas provides the complete step by step calculation.

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