4.A corporation imposes different price increases on its product in eight different regions of the country and measures over the next year changes in sales volume. The results are shown in the accompanying table. 10 8. Change in 6. 4 Price (Percentage 5.2 7.3 7.4 4.6 5.3 5.0 -1.0 2.9 Change in Sales (Percentage a. Find correlation coefficient between change in price and change in sales and test it whether it is statistically significant at 0.05 significance level. b. Determine which variable is dependent variable and which variable is independent variable based on the original variables, estimate the regression model and interpret the model. c. Run hypothesis testing at 0.05 significance level whether the regression coefficient b, is statistically significant or not. d. Calculate R2 value and interpret the result e.Predict the dependent variable value when independent variable is 4.8 and interpret the result.
4.A corporation imposes different price increases on its product in eight different regions of the country and measures over the next year changes in sales volume. The results are shown in the accompanying table. 10 8. Change in 6. 4 Price (Percentage 5.2 7.3 7.4 4.6 5.3 5.0 -1.0 2.9 Change in Sales (Percentage a. Find correlation coefficient between change in price and change in sales and test it whether it is statistically significant at 0.05 significance level. b. Determine which variable is dependent variable and which variable is independent variable based on the original variables, estimate the regression model and interpret the model. c. Run hypothesis testing at 0.05 significance level whether the regression coefficient b, is statistically significant or not. d. Calculate R2 value and interpret the result e.Predict the dependent variable value when independent variable is 4.8 and interpret the result.
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
Topic Video
Question
Please help me the clear solution of this answer. Thank you in advance
![4.A corporation imposes different price increases on its product in eight different regions of the
country and measures over the next year changes in sales volume. The results are shown in the
accompanying table.
10
8
Change
in
4
Price
(Percentage
7.3
7.4
4.6
5.3
5.0
-1.0
2.9
Change
in
5.2
Sales
(Percentage
a. Find correlation coefficient between change in price and change in sales and test it whether it is
statistically significant at 0.05 significance level.
b. Determine which variable is dependent variable and which variable is independent variable based
on the original variables, estimate the regression model and interpret the model.
c. Run hypothesis testing at 0.05 significance level whether the regression coefficient b, is statistically
significant or not.
d. Calculate R2 value and interpret the result
e.Predict the dependent variable value when independent variable is 4.8 and interpret the result.](/v2/_next/image?url=https%3A%2F%2Fcontent.bartleby.com%2Fqna-images%2Fquestion%2Feb14ee96-cdfd-49cd-9add-6715b1e05549%2F2898e94d-f9a3-4785-91a0-fff038eca094%2F95s805x_processed.jpeg&w=3840&q=75)
Transcribed Image Text:4.A corporation imposes different price increases on its product in eight different regions of the
country and measures over the next year changes in sales volume. The results are shown in the
accompanying table.
10
8
Change
in
4
Price
(Percentage
7.3
7.4
4.6
5.3
5.0
-1.0
2.9
Change
in
5.2
Sales
(Percentage
a. Find correlation coefficient between change in price and change in sales and test it whether it is
statistically significant at 0.05 significance level.
b. Determine which variable is dependent variable and which variable is independent variable based
on the original variables, estimate the regression model and interpret the model.
c. Run hypothesis testing at 0.05 significance level whether the regression coefficient b, is statistically
significant or not.
d. Calculate R2 value and interpret the result
e.Predict the dependent variable value when independent variable is 4.8 and interpret the result.
Expert Solution
![](/static/compass_v2/shared-icons/check-mark.png)
This question has been solved!
Explore an expertly crafted, step-by-step solution for a thorough understanding of key concepts.
Step by step
Solved in 5 steps with 5 images
![Blurred answer](/static/compass_v2/solution-images/blurred-answer.jpg)
Knowledge Booster
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.Recommended textbooks for you
![MATLAB: An Introduction with Applications](https://www.bartleby.com/isbn_cover_images/9781119256830/9781119256830_smallCoverImage.gif)
MATLAB: An Introduction with Applications
Statistics
ISBN:
9781119256830
Author:
Amos Gilat
Publisher:
John Wiley & Sons Inc
![Probability and Statistics for Engineering and th…](https://www.bartleby.com/isbn_cover_images/9781305251809/9781305251809_smallCoverImage.gif)
Probability and Statistics for Engineering and th…
Statistics
ISBN:
9781305251809
Author:
Jay L. Devore
Publisher:
Cengage Learning
![Statistics for The Behavioral Sciences (MindTap C…](https://www.bartleby.com/isbn_cover_images/9781305504912/9781305504912_smallCoverImage.gif)
Statistics for The Behavioral Sciences (MindTap C…
Statistics
ISBN:
9781305504912
Author:
Frederick J Gravetter, Larry B. Wallnau
Publisher:
Cengage Learning
![MATLAB: An Introduction with Applications](https://www.bartleby.com/isbn_cover_images/9781119256830/9781119256830_smallCoverImage.gif)
MATLAB: An Introduction with Applications
Statistics
ISBN:
9781119256830
Author:
Amos Gilat
Publisher:
John Wiley & Sons Inc
![Probability and Statistics for Engineering and th…](https://www.bartleby.com/isbn_cover_images/9781305251809/9781305251809_smallCoverImage.gif)
Probability and Statistics for Engineering and th…
Statistics
ISBN:
9781305251809
Author:
Jay L. Devore
Publisher:
Cengage Learning
![Statistics for The Behavioral Sciences (MindTap C…](https://www.bartleby.com/isbn_cover_images/9781305504912/9781305504912_smallCoverImage.gif)
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…](https://www.bartleby.com/isbn_cover_images/9780134683416/9780134683416_smallCoverImage.gif)
Elementary Statistics: Picturing the World (7th E…
Statistics
ISBN:
9780134683416
Author:
Ron Larson, Betsy Farber
Publisher:
PEARSON
![The Basic Practice of Statistics](https://www.bartleby.com/isbn_cover_images/9781319042578/9781319042578_smallCoverImage.gif)
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](https://www.bartleby.com/isbn_cover_images/9781319013387/9781319013387_smallCoverImage.gif)
Introduction to the Practice of Statistics
Statistics
ISBN:
9781319013387
Author:
David S. Moore, George P. McCabe, Bruce A. Craig
Publisher:
W. H. Freeman