An engineer wants to determine how the weight of a car, x, affects gas mileage, y. The following data represent the weights of various cars and their miles per gallon. Car A B с D E Q 2615 3015 3305 3650 4250 31.8 25.8 27.4 21.9 19.4 Weight (pounds), x Miles per Gallon, y C me siope muncates the Tau petween the mean weight and the mean mies per yalivi. O D. The slope indicates the mean miles per gallon. O E. It is not appropriate to interpret the slope because it is not equal to zero. Choose the best interpretation for the y-intercept. O A. The y-intercept indicates the miles per gallon of the lightest car in the population. O B. The y-intercept indicates the mean miles for a car that weighs 0 pounds. O C. The y-intercept indicates the miles per gallon for a new car. O D. The y-intercept indicates the mean miles per gallon for a car that weighs 0 pounds. E. It is not appropriate to interpret the y-intercept because it does not make sense to talk about a car that weighs 0 pounds. (c) Predict the miles per gallon of car C and compute the residual. Is the miles per gallon of this car above average or below average for cars of this weight? The predicted value is miles per gallon. (Round to two decimal places as needed.)

An engineer wants to determine how the weight of a car, x, affects gas mileage, y. The following data represent the weights of various cars and their miles per gallon. Car A B с D E Q 2615 3015 3305 3650 4250 31.8 25.8 27.4 21.9 19.4 Weight (pounds), x Miles per Gallon, y C me siope muncates the Tau petween the mean weight and the mean mies per yalivi. O D. The slope indicates the mean miles per gallon. O E. It is not appropriate to interpret the slope because it is not equal to zero. Choose the best interpretation for the y-intercept. O A. The y-intercept indicates the miles per gallon of the lightest car in the population. O B. The y-intercept indicates the mean miles for a car that weighs 0 pounds. O C. The y-intercept indicates the miles per gallon for a new car. O D. The y-intercept indicates the mean miles per gallon for a car that weighs 0 pounds. E. It is not appropriate to interpret the y-intercept because it does not make sense to talk about a car that weighs 0 pounds. (c) Predict the miles per gallon of car C and compute the residual. Is the miles per gallon of this car above average or below average for cars of this weight? The predicted value is miles per gallon. (Round to two decimal places as needed.)

MATLAB: An Introduction with Applications

6th Edition

ISBN:9781119256830

Author:Amos Gilat

Publisher:Amos Gilat

Chapter1: Starting With Matlab

Section: Chapter Questions

Problem 1P

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