Construct the scatter plot using your TI calculator and comment on the relationship (no need to show the graph, just comment on the relationship you see). Calculate the value of r, the linear correlation coefficient. Round to four decimal places.
Construct the scatter plot using your TI calculator and comment on the relationship (no need to show the graph, just comment on the relationship you see). Calculate the value of r, the linear correlation coefficient. Round to four 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
The U.S. market shares (percentage of U.S. vehicle sales) of Ford are shown below for various years:
|
Year |
|
Market Share (%) |
|
2015 |
|
16.0 |
|
2016 |
|
15.0 |
|
2017 |
|
14.5 |
|
2018 |
|
14.1 |
|
2019 |
|
13.5 |
|
2020 |
|
13.0 |
|
2021 |
|
12.6 |
Let x be years since 2015.
Let y be Ford’s market share at x years since 2015.
- Construct the
scatter plot using your TI calculator and comment on the relationship (no need to show the graph, just comment on the relationship you see).
- Calculate the value of r, the linear
correlation coefficient . Round to four decimal places.
- Find the best-fit line (i.e. the regression line). Round all value to two decimal places.
- Predict Ford’s market share in 2023. Round to two decimal places.
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