Maurice Tutor

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Expertise:
Algebra,Applied Sciences See all
Algebra,Applied Sciences,Biology,Calculus,Chemistry,Economics,English,Essay writing,Geography,Geology,Health & Medical,Physics,Science Hide all
Teaching Since: May 2017
Last Sign in: 408 Weeks Ago, 6 Days Ago
Questions Answered: 66690
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Education

  • MCS,PHD
    Argosy University/ Phoniex University/
    Nov-2005 - Oct-2011

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  • Professor
    Phoniex University
    Oct-2001 - Nov-2016

Category > Management Posted 25 Oct 2017 My Price 7.00

Gas mileage

Gas mileage revisited. Let’s try the re-expressed variable Fuel Consumption (gal/100 mi) to examine the fuel efficiency of the 11 cars in Exercise 7. Here are the revised regression analysis and residuals plot:

a) Explain why this model appears to be better than the linear model.

b) Using the regression analysis above, write an equation of this model.

c) Interpret the slope of this line.

d) Based on this model, how many miles per gallon would you expect a 3500-pound car to get?

Exercise 7

Gas mileage. As the example in the chapter indicates, one of the important factors determining a car’s Fuel Efficiency is its Weight. Let’s examine this relationship again, for 11 cars.

a) Describe the association between these variables shown in the scatterplot on the next page.

b) Here is the regression analysis for the linear model. What does the slope of the line say about this relationship?

c) Do you think this linear model is appropriate? Use the residuals plot to explain your decision.

 

Answers

Maurice Tutor
(5)
Status NEW Posted 25 Oct 2017 10:10 AM My Price 7.00

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