(c) Use the least squares method to develop the estimated regression equation that can be used to predict annual revenue (in $ millions) given the number of cars in service (in 1,000s). (Round your numerical values to three decimal places.) ý = -15.045 + 12.834x (d) For every additional car placed in service, estimate how much annual revenue will change (in dollars). (Round your answer to the nearest integer.) Annual revenue will increase by $12 x ,for every additional car placed in service. (e) A particular rental company has 6,000 cars in service. Use the estimated regression equation developed in part (c) to predict annual revenue (in $ millions) for this company. (Round your answer to the nearest integer.)

MATLAB: An Introduction with Applications
6th Edition
ISBN:9781119256830
Author:Amos Gilat
Publisher:Amos Gilat
Chapter1: Starting With Matlab
Section: Chapter Questions
Problem 1P
icon
Related questions
icon
Concept explainers
Question
Cars
Revenue
Company
(1,000s) ($ millions)
Company A
11.5
120
Company B
10.0
133
Company C
9.0
102
Company D
5.5
37
Company E
4.2
42
Company F
3.3
34
(a) Develop a scatter diagram with the number of cars in service as the independent variable.
160-
160
160
160-
140
140
140
140-
120-
120
120
120
100
100
100
100
80
80
80
80
60
60
60
60
40
...
40
40
..
40
20
20
20
20
2
4
6
8
10
12
14
0 2
0 2
4 6 8
4 6 8
4 6 8
10
12
14
10
12
14
10
12
14
Cars in Service (1,000s)
Cars in Service (1,000s)
Cars in Service (1,000s)
Cars in Service (1,000s)
(b) What does the scatter diagram developed in part (a) indicate about the relationship between the two variables?
O There appears to be no noticeable relationship between cars in service (1,000s) and annual revenue ($ millions).
O There appears to be a positive linear relationship between cars in service (1,000s) and annual
revenue ($ millions).
O There appears to be a negative linear relationship between cars in service (1,000s) and annual
revenue ($ millions).
(c) Use the least squares method to develop the estimated regression equation that can be used to predict annual revenue (in $ millions) given the number of cars in service (in 1,000s). (Round your numerical values to three decimal places.)
ý = -15.045 + 12.834x
(d) For every additional car placed in service, estimate how much annual revenue will change (in dollars). (Round your answer to the nearest integer.)
Annual revenue will increase by $12 x, for every additional car placed in service.
(e) A particular rental company has 6,000 cars in service. Use the estimated regression equation developed in part (c) to predict annual revenue (in $ millions) for this company. (Round your answer to the nearest integer.)
$ 76989
x million
Annual Revenue ($ millions)
Annual Revenue ($ millions)
Transcribed Image Text:Cars Revenue Company (1,000s) ($ millions) Company A 11.5 120 Company B 10.0 133 Company C 9.0 102 Company D 5.5 37 Company E 4.2 42 Company F 3.3 34 (a) Develop a scatter diagram with the number of cars in service as the independent variable. 160- 160 160 160- 140 140 140 140- 120- 120 120 120 100 100 100 100 80 80 80 80 60 60 60 60 40 ... 40 40 .. 40 20 20 20 20 2 4 6 8 10 12 14 0 2 0 2 4 6 8 4 6 8 4 6 8 10 12 14 10 12 14 10 12 14 Cars in Service (1,000s) Cars in Service (1,000s) Cars in Service (1,000s) Cars in Service (1,000s) (b) What does the scatter diagram developed in part (a) indicate about the relationship between the two variables? O There appears to be no noticeable relationship between cars in service (1,000s) and annual revenue ($ millions). O There appears to be a positive linear relationship between cars in service (1,000s) and annual revenue ($ millions). O There appears to be a negative linear relationship between cars in service (1,000s) and annual revenue ($ millions). (c) Use the least squares method to develop the estimated regression equation that can be used to predict annual revenue (in $ millions) given the number of cars in service (in 1,000s). (Round your numerical values to three decimal places.) ý = -15.045 + 12.834x (d) For every additional car placed in service, estimate how much annual revenue will change (in dollars). (Round your answer to the nearest integer.) Annual revenue will increase by $12 x, for every additional car placed in service. (e) A particular rental company has 6,000 cars in service. Use the estimated regression equation developed in part (c) to predict annual revenue (in $ millions) for this company. (Round your answer to the nearest integer.) $ 76989 x million Annual Revenue ($ millions) Annual Revenue ($ millions)
Expert Solution
trending now

Trending now

This is a popular solution!

steps

Step by step

Solved in 2 steps

Blurred answer
Knowledge Booster
Correlation, Regression, and Association
Learn more about
Need a deep-dive on the concept behind this application? Look no further. Learn more about this topic, statistics and related others by exploring similar questions and additional content below.
Similar questions
Recommended textbooks for you
MATLAB: An Introduction with Applications
MATLAB: An Introduction with Applications
Statistics
ISBN:
9781119256830
Author:
Amos Gilat
Publisher:
John Wiley & Sons Inc
Probability and Statistics for Engineering and th…
Probability and Statistics for Engineering and th…
Statistics
ISBN:
9781305251809
Author:
Jay L. Devore
Publisher:
Cengage Learning
Statistics for The Behavioral Sciences (MindTap C…
Statistics for The Behavioral Sciences (MindTap C…
Statistics
ISBN:
9781305504912
Author:
Frederick J Gravetter, Larry B. Wallnau
Publisher:
Cengage Learning
Elementary Statistics: Picturing the World (7th E…
Elementary Statistics: Picturing the World (7th E…
Statistics
ISBN:
9780134683416
Author:
Ron Larson, Betsy Farber
Publisher:
PEARSON
The Basic Practice of Statistics
The Basic Practice of Statistics
Statistics
ISBN:
9781319042578
Author:
David S. Moore, William I. Notz, Michael A. Fligner
Publisher:
W. H. Freeman
Introduction to the Practice of Statistics
Introduction to the Practice of Statistics
Statistics
ISBN:
9781319013387
Author:
David S. Moore, George P. McCabe, Bruce A. Craig
Publisher:
W. H. Freeman