The F-ratio evaluating the significance of a linear regression equation based on n = 10 pairs of X and Y scores has df = 1,8.

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Quizplus · Accepted Answer

The F-ratio for a linear regression equation with one predictor variable and n pairs of X and Y scores has df = 1, n-2 (or degrees of freedom for the numerator and denominator, respectively). Therefore, if df = 1,8, it means there is one predictor variable and n-2 = 8, so n = 10.

The F-Ratio Evaluating the Significance of a Linear Regression Equation