Question

The following data show the curb weight, horsepower, and ¼-mile speed for 16 popular sports and GT cars. Suppose that the price of each sports and GT car is also available. The complete data set is as follows:
a. Find the estimated regression equation, which uses price and horsepower to predict 1⁄₄-mile speed.
b. Plot the standardized residuals against y-bar. Does the residual plot support the assumption about ε? Explain.
c. Check for any outliers. What are your conclusions?
d. Are there any influential observations? Explain.


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  • CreatedSeptember 20, 2015
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