(b) What is the intercept? Give your answer to three decimal places.
Big Ideas Math A Bridge To Success Algebra 1: Student Edition 2015
1st Edition
ISBN:9781680331141
Author:HOUGHTON MIFFLIN HARCOURT
Publisher:HOUGHTON MIFFLIN HARCOURT
Chapter4: Writing Linear Equations
Section: Chapter Questions
Problem 11CT
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
1259 vehicles in the government's 2019 Fuel Economy
Guide give the regression line
highway mpg = 8.720 + (0.914x city mpg)
for predicting highway mileage from city mileage.
1
O Macmillan Learning
(b) What is the intercept? Give your answer to three
decimal places.
intercept:
Why is the value of the intercept not
statistically meaningful?
The value of the intercept is an average value
calculated from a sample.
The value of the intercept represents the predicted
highway mileage for city gas mileage of 0 mpg,
and such a prediction would be invalid since 0 is
outside the range of the data.
The value of the intercept represents the predicted
highway mileage for slope 0.
O The value of the intercept represents the predicted
city mileage for highway gas mileage of 0 mpg,
and such a car does not exist.
mpg](/v2/_next/image?url=https%3A%2F%2Fcontent.bartleby.com%2Fqna-images%2Fquestion%2F6f1a24a3-cdb7-4848-badb-f3bb97d85b36%2Fc4a9a5da-7369-4b51-bea9-7c3f25b6effc%2Fit3q5i7_processed.jpeg&w=3840&q=75)
Transcribed Image Text:We expect a car's highway gas mileage to be related to its
city gas mileage (in miles per gallon, mpg). Data for all
1259 vehicles in the government's 2019 Fuel Economy
Guide give the regression line
highway mpg = 8.720 + (0.914x city mpg)
for predicting highway mileage from city mileage.
1
O Macmillan Learning
(b) What is the intercept? Give your answer to three
decimal places.
intercept:
Why is the value of the intercept not
statistically meaningful?
The value of the intercept is an average value
calculated from a sample.
The value of the intercept represents the predicted
highway mileage for city gas mileage of 0 mpg,
and such a prediction would be invalid since 0 is
outside the range of the data.
The value of the intercept represents the predicted
highway mileage for slope 0.
O The value of the intercept represents the predicted
city mileage for highway gas mileage of 0 mpg,
and such a car does not exist.
mpg
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