If the fitted regression is Y = 3.5 + 2.1X (R² = .25, n = 25), it is incorrect to conclude that: A)Y increases 2.1 percent for a 1 percent increase in X. B)the estimated regression line crosses the Y axis at 3.5. C)the sample correlation coefficient must be positive. D)the value of the sample correlation coefficient is 0.50.

Question

Quizplus · Accepted Answer

It is incorrect to say that Y increases 2.1 percent for a 1 percent increase in X because the coefficient 2.1 represents the change in Y for a 1 unit increase in X, not a 1 percent increase.

If the Fitted Regression Is Y = 3