"> (Answered) se this information to solve problems 21 and 22: The weights of 14 small to midsize cars and their lengths are given in the following table: Weight... - Tutorials Prime

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(Answered) se this information to solve problems 21 and 22: The weights of 14 small to midsize cars and their lengths are given in the following table: Weight...


se this information to solve problems 21 and 22: The weights of 14 small to midsize cars and their lengths are given in the following table: Weight...


se this information to solve problems 21 and 22:The weights of 14 small to midsize cars and their lengths are given in the following table: Weight (1000 lbs)2.562.622.742.903.123.223.22Length (inches)154167177177180179190 Weight (1000 lbs)3.263.323.463.463.543.563.62Length (inches)194191180189188191177The least squares regression line for the data above has the equation y = 22.60 x + 109.01.  21. What is the predicted length (to the nearest inch) of a car which weighs 3200 pounds?   a) 181 in   b) 185 in   c) 144,717 in   d) We cannot predict the length of a car which weighs 3200 pounds. 22. How should the slope of the regression line be interpreted in real-life terms?   a) For every increase in weight by 1000 pounds, we expect a corresponding increase inthe length by 22.6 inches.   b) For every decrease in weight by 1000 pounds, we expect a corresponding increase in the length by 22.6 inches.   c) For every increase in weight by 1000 pounds, we expect a corresponding decrease inthe length by 22.6 inches.   d) For every increase in weight by 1000 pounds, we expect a corresponding increase inthe length by 109.01 inches.   

 


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Jan 02, 2020

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