We expect a car's highway gas mileage to be related to its city gas mileage (in miles per gallon, mpg). Data for all 12591259 vehicles in the government's 2019 Fuel Economy Guide give the regression line highway mpg=8.720+(0.914×city mpg)highway mpg=8.720+(0.914×city mpg) for predicting highway mileage from city mileage. (b) What is the intercept? Give your answer to three decimal pla
We expect a car's highway gas mileage to be related to its city gas mileage (in miles per gallon, mpg). Data for all 12591259 vehicles in the government's 2019 Fuel Economy Guide give the regression line highway mpg=8.720+(0.914×city mpg)highway mpg=8.720+(0.914×city mpg) for predicting highway mileage from city mileage. (b) What is the intercept? Give your answer to three decimal pla
Glencoe Algebra 1, Student Edition, 9780079039897, 0079039898, 2018
18th Edition
ISBN:9780079039897
Author:Carter
Publisher:Carter
Chapter10: Statistics
Section10.3: Measures Of Spread
Problem 1GP
Related questions
Question
We expect a car's highway gas mileage to be related to its city gas mileage (in miles per gallon, mpg). Data for all 12591259 vehicles in the government's 2019 Fuel Economy Guide give the regression line
highway mpg=8.720+(0.914×city mpg)highway mpg=8.720+(0.914×city mpg)
for predicting highway mileage from city mileage.
(b) What is the intercept? Give your answer to three decimal places.
intercept:
Expert Solution
Step 1
mpg = miles per gallon
Data for 1259 vehicles give regression line.
Regression line :
Highway mpg = 8.720 + (0.914 × city mpg)
* Regression line consist two variables
(dependent and independent)
Y = mX + c
Y = dependent variable ( Highway mpg )
X = independent variable ( city mpg )
m = slope
* Slope represent average increase in Y by increasing one unit in X
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