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This quiz: 11 point(s) Quiz: Chapter 4 Review Quiz Question 2 of 11 possible This question: 1 Resume later point(s) possible Submit quiz lope The
This quiz: 11 point(s) Quiz: Chapter 4 Review Quiz Question 2 of 11 possible This question: 1 Resume later point(s) possible Submit quiz lope The data in the table represent the weights of various domestic cars and their miles per gallon in the city for the 2008 model year. For these data, the least-squares regression line is y = - 0.005x + 38.872. A twelfth car weighs 3,425 pounds and gets 13 miles per gallon. ator (a) Compute the coefficient of determination of the expanded data set. What effect does the addition of the twelfth car to the data set have on R-? utawinska (b) Is the point corresponding to the twelfth car influential? Is it an outlier? 05, 2021 Click the icon to view the data table. - X Data table (a) The coefficient of determination of the expanded data set is R =% (Round to one decimal place as needed.) Weight Miles per (pounds), x Gallon, y slope? How does the addition of the twelfth car to the data set affect R-? Car 1 3,770 22 e point-sl Car 2 3,984 22 O A. It decreases R2. d the equa Car 3 3,535 20 Car 4 3,178 22 coordinate O B. It increases R2 . Car 5 2,577 26 O C. It does not affect R2. Car 6 3,732 20 Car 7 2,610 27 (b) Is the point corresponding to the twelfth car influential? Is it an outlier? Car 8 3,774 18 Car 9 3,308 21 O A. Yes, it is influential. No, it is not an outlier. Car 10 2,995 25 O B. No, it is not influential. No, it is not an outlier. Car 11 2,752 26 O C. Yes, it is influential. Yes, it is an outlier. O D. No, it is not influential. Yes, it is an outlier. form calcu Print Done quation of Statcrunch Tech help Calculator the line's
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