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  3. given the following data where city mpg is the res

Given the following data where city MPG is the response variable and weight is the explanatory...

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Question

Basic Math

  • Given the following data where city MPG is the responsevariable and weight is the explanatory variable, explain why aregression line would be appropriate to analyze the relationshipbetween these variables:

Model

City MPG

Weight

Mazda MX-5 Miata

25

2365

Mercedes/Benz SLK

22

3020

Mitsubishi Eclipse

23

3235

Pontiac Firebird

18

3545

Porsche Boxster

19

2905

Saturn SC

27

2420

  • Construct the regression line for this data.
  • Interpret the meaning of the y-intercept and the slope withinthis scenario.
  • What would you predict the city MPG to be for a car that weighs3000 pounds?
  • If a car that weighs 3000 pounds actually gets 32 MPG, wouldthis be unusual? Calculate the residual and talk about what thatvalue represents

Answer & Explanation Solved by verified expert
3.8 Ratings (439 Votes)
Using Minitab software we get the following output The regression line is Interpretation of y intercept    See Answer
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