(b) What is the intercept? Give your answer to three decimal places.
MATLAB: An Introduction with Applications
6th Edition
ISBN:9781119256830
Author:Amos Gilat
Publisher:Amos Gilat
Chapter1: Starting With Matlab
Section: Chapter Questions
Problem 1P
Related questions
Question

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
Expert Solution

Step 1: Determine the given data in the question
Here the dependent variable is highway mpg.
The independent variable is city mpg.
Given that,
No. of vehicles
The regression line is,
Step by step
Solved in 3 steps with 2 images

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