For a linear regression equation computed for a sample of n = 30, the unpredicted portion of the Y-score variance (MS_residual) has df = 28.

Name: For a linear regression equation computed for a sample of n = 30, the unpredicted portion of the Y-score variance (MS residual ) has df = 28.
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Quizplus · Accepted Answer

The degrees of freedom for the residuals in linear regression is calculated as n - 2, where n is the sample size. For n = 30, df = 30 - 2 = 28.

For a Linear Regression Equation Computed for a Sample of N