If you are looking forward towards calculating the Standard Deviation and Standard Error of the Mean in Excel, please check this article.

The residual standard deviation describes the difference in standard deviations of observed values vs. predicted values in a regression analysis.

The standard error is the standard deviation of a sample population. It measures the accuracy with which a sample represents a population.

Note that this adjustment also affects the SSE, which is used to estimate the standard errors of the regression coefficients and fitted values, and may have a large effect on the statistical ...