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Carrying Out a Test for the Slope of a Regression Model

AP Statistics· difficulty 2/5

Output for a regression on n = 50 observations.

Regression Output (n=50) Pred. Coef SE t p Const x 10.2 2.0 5.10 0.000 3.5 0.7 5.00 0.000

What is the regression equation y-hat?

  • A

    y-hat = 5.10 + 5.00x

  • B

    y-hat = 10.2 + 3.5x

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  • C

    y-hat = 2.0 + 0.7x

  • D

    y-hat = 3.5 + 10.2x

Explanation

The intercept is the "Constant" coefficient (10.2) and the slope is the coefficient on x (3.5): y-hat = 10.2 + 3.5x.

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