If the Fitted Regression Is Y = 3

question 46

Multiple Choice

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.

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