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December 19, 2014

Homework Help: Statistic HELPPPPPP

Posted by Melissa on Monday, March 11, 2013 at 12:05am.

A linear model can be used to describe the relationship between fuel economy(mpg) and horsepower (hp) for certain automobile models.

mpg=46.868-0.0838 hp R^2=75.5%

1) Give the symbol and the value of the correlation coefficient.

2)What would the gas mileage be for a car with a 140 horsepower engine.

3) Interpret with a sentence in context the meaning of R^2?

4) Interpret with a sentence in context the meaning of the slope.

5)Interpret with a sentence in context the meaning of the y-intercept.

6)Interpret with a sentence in context the meaning of particular car having a negative residual.

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