Use the following information:
A consumer research company collected data for 16 models of sport
utility vehicles of various sizes. The research team measured the
overall fuel economy and the distance between their front and rear axles
(wheelbase) of each vehicle. The scatter plot and line of best fit is
shown in the diagram below.
Which one of the following statements concerning the regression line
is true?
a. There is a positive linear relationship between the two variables.
b. The slope is greater that 1.
c. The intercept is at or near 30.
d. Vehicles with larger wheelbases have the worst fuel economy.
The slope of the regression line, b1, is at or near which of the
following values?
a. –0.3
b. 0
c. 0.3
d. 3
The intercept of the regression line, b0, is at or near which of the
following values?
a. 20
b. 30
c. 60
d. 160
Juanita Douglas just bought a new red SUV that has a wheelbase of 115
inches. What overall fuel economy can she expect to obtain?
a. 28 mpg
b. 25 mpg
c. 20 mpg
d. 15 mpg
Statistics Homework Solutions
#10602
Regression: Multiple Choice Questions
Which one of the following statements concerning the regression line is true?
a. There is a positive linear relationship between the two variables.
b. The slope is greater that 1.
c. The intercept is at or near 30.
d. Vehicles with larger wheelbases have the worst fuel economy.
The slope of the regression line, b1, is at or near which of the following values?
a. -0.3
b. 0
c. 0.3
d. 3
The intercept of the regression line, b0, is at or near which of the following values?
a. 20
b. 30
c. 60
d. 160
Juanita Douglas just bought a new red SUV that has a wheelbase of 115 inches. What overall fuel economy can she expect to obtain?
a. 28 mpg
b. 25 mpg
c. 20 mpg
d. 15 mpg
This solution looks at four multiple choice questions regarding regression: properties of a regression line, slope, intercept and prediction.
What is this?
By OTA - Overall OTA Rating
Giovanni Chin-A-Sen, MBA - 4.9/5
Purchase Cost Now
$2.19 CAD (was ~$11.97)
Included in Download
- Plain text response
Why you can trust BrainMass.com
- Your Information is Secure
- Best Online Academic Help Service
- Students find real academic Success
- Regression - 5. For the following data: Case X Y 1 13 5 2 17 45 3 9 0 4 11 18 5 15 25 6 8 4 7 13 10 8 18 35 9 16 15 10 10 0 X-Bar = 13, SDx = 3.46; Y-Bar = 15.70, SDy = 15.28 a. Calculate slope a. ...
- Does the strength of the correlation depend on the direction of the correlation ( + or -)? - 1. Does the strength of the correlation depend on the direction of the correlation ( + or -)? 2. How does linear regression relate to straight lines in algebra (slope, y-intercept, x and y)? 3. ...
- Correlation and linear regression - 1. The linear correlation coefficient of a set of data points is 0.846. a. Is the slope of the regression line positive or negative? Explain your answer. b. Determine the coefficient of determinatio ...
- Linear regression - Given the following data: Height 71 70.5 71 72 70 70 66.5 70 71 (in) Weight 125 119 128 128 119 127 105 123 115 (lbs) Find the value of the y-inte ...
- Regression Equation - Compute the intercept of the regression line for the data below. X values -3 1 5 8 Y values 3 2 -3 0 A) 2.22 B) 1.60 C) 2.93 D) 1.77
