In a multiple regression analysis with three explanatory variables,suppose that there are 60 observations and the sum of the residuals squared is 28.The standard error of estimate must be 0.7071.

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The standard error of estimate is the square root of the mean squared error, which is the sum of the residuals squared divided by the degrees of freedom. In this case, the degrees of freedom are 60 - 3 = 57, so the standard error of estimate is sqrt(28/57) = 0.7071.

In a Multiple Regression Analysis with Three Explanatory Variables,suppose That