Computing the fuel economy

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Reference no: EM131009151

Fuel economy

A consumer organization has reported test data for 50 car models. We will examine the associa- tion between the weight of the car (in thousands of pounds) and the fuel efficiency (in miles per gallon). Use the data provided on the disk to answer the follow- ing questions, where the response variable is Fuel Efficiency (mpg).

a) Create the scatterplot and obtain the regression equation.

b) Are the assumptions for regression satisfied?

c) Write the appropriate hypotheses for the slope.

d) Test the hypotheses and state your conclusion.

Reference no: EM131009151

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