Use the given data set to complete parts (a) through (c) below. (Use a= 0.05.) X 10 8 13 9. 11 14 4 7. 7.25 y 9.14 8.14 8.74 12 8.77 9.27 8.11 6.13 3.11 9.12 4.75 Click here to view a table of critical values for the correlation coefficient. a. Construct a scatterplot Choose the correct graph below. O A. OB. OD. Ay 10- Ay 1어 Ay 10- 10- 8- 8- 8- 6- 6- 6- ....... .. 12 6- 4- 4- 4- 4- 2- 2- 2- 2- ....... 0- 12 16 12 16 12 16 b. Find the linear correlation coefficient,r, then determine whether there is sufficient evidence to support the claim of a linear correlation between the two variables. The linear correlation coefficient is rD (Round to three decimal places as needed.) Using the linear correlation coefficient found in the previous step, determine whether there is sufficient evidence to support the claim of a linear correlation between the two variables, Choose the correct answer below. O A. There is insufficient evidence to support the claim of a nonlinear correlation between the two variables.

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
**Example Problem on Linear Correlation**

**Problem Statement:**

Use the given data set to complete parts (a) through (c) below. (Use \(\alpha = 0.05\) )

\[
\begin{array}{c|cccccccccc}
x & 10 & 8 & 13 & 9 & 11 & 14 & 6 & 4 & 12 & 7 & 5 \\
\hline
y & 9.14 & 8.14 & 8.74 & 8.77 & 9.27 & 8.11 & 6.13 & 3.11 & 9.12 & 7.25 & 4.75 \\
\end{array}
\]

To calculate the linear correlation coefficient \( r \), click here to view a table of critical values for the correlation coefficient.

**Part (a):**
Calculate the linear correlation coefficient \( r \):
\[ r = \_\_\_\_\_ \]
(Round to three decimal places as needed.)

**Part (b):**
Using the linear correlation coefficient found in the previous step, determine whether there is sufficient evidence to support the claim of a linear correlation between the two variables. Choose the correct answer below:
- A. There is insufficient evidence to support the claim of a nonlinear correlation between the two variables.
- B. There is sufficient evidence to support the claim of a nonlinear correlation between the two variables.
- C. There is sufficient evidence to support the claim of a linear correlation between the two variables.
- D. There is insufficient evidence to support the claim of a linear correlation between the two variables.

**Part (c):**
Identify the feature of the data that would be missed if part (b) was completed without constructing the scatterplot. Choose the correct answer below:
- A. The scatterplot reveals a distinct pattern that is a straight-line pattern with a negative slope.
- B. The scatterplot reveals a distinct pattern that is a straight-line pattern with a positive slope.
- C. The scatterplot reveals a distinct pattern that is not a straight-line pattern.
- D. The scatterplot does not reveal a distinct pattern.

---
Transcribed Image Text:**Example Problem on Linear Correlation** **Problem Statement:** Use the given data set to complete parts (a) through (c) below. (Use \(\alpha = 0.05\) ) \[ \begin{array}{c|cccccccccc} x & 10 & 8 & 13 & 9 & 11 & 14 & 6 & 4 & 12 & 7 & 5 \\ \hline y & 9.14 & 8.14 & 8.74 & 8.77 & 9.27 & 8.11 & 6.13 & 3.11 & 9.12 & 7.25 & 4.75 \\ \end{array} \] To calculate the linear correlation coefficient \( r \), click here to view a table of critical values for the correlation coefficient. **Part (a):** Calculate the linear correlation coefficient \( r \): \[ r = \_\_\_\_\_ \] (Round to three decimal places as needed.) **Part (b):** Using the linear correlation coefficient found in the previous step, determine whether there is sufficient evidence to support the claim of a linear correlation between the two variables. Choose the correct answer below: - A. There is insufficient evidence to support the claim of a nonlinear correlation between the two variables. - B. There is sufficient evidence to support the claim of a nonlinear correlation between the two variables. - C. There is sufficient evidence to support the claim of a linear correlation between the two variables. - D. There is insufficient evidence to support the claim of a linear correlation between the two variables. **Part (c):** Identify the feature of the data that would be missed if part (b) was completed without constructing the scatterplot. Choose the correct answer below: - A. The scatterplot reveals a distinct pattern that is a straight-line pattern with a negative slope. - B. The scatterplot reveals a distinct pattern that is a straight-line pattern with a positive slope. - C. The scatterplot reveals a distinct pattern that is not a straight-line pattern. - D. The scatterplot does not reveal a distinct pattern. ---
## Data Analysis and Correlation 

### Given Data Set
The following table presents the values for variables \( x \) and \( y \):

| \( x \) | 10 | 8 | 13 | 9 | 11 | 14 | 6 | 4 | 12 | 7 | 5 |
|------|----|---|----|---|----|----|---|---|----|---|---|
| \( y \) | 9.14 | 8.14 | 8.74 | 8.77 | 9.27 | 8.11 | 6.13 | 3.11 | 9.12 | 7.25 | 4.75 |

### Instructions: 
1. **Scatterplot Construction**:
   - Construct a scatterplot using the provided data set to visually assess the relationship between variables \( x \) and \( y \).
   - Choose the correct scatterplot from the options provided (A, B, C, D).

2. **Scatterplot Options**:
   - **Option A**: Graph with a positive linear trend.
   - **Option B**: Shows a curved trend, indicating a potential non-linear relationship.
   - **Option C**: Graph with a negative linear trend.
   - **Option D**: Another graph with a positive linear trend but with a different pattern.

3. **Correlation Analysis**:
   - Calculate the linear correlation coefficient, \( r \), to evaluate the linear relationship between \( x \) and \( y \).
   - Round your answer to three decimal places as necessary.
   - Based on the calculated correlation coefficient, determine if there is sufficient evidence to support a claim of a linear correlation between the two variables.
   - Choose the correct statement from the provided options.

#### Scatterplot Construction:

**Choose the correct graph:**

- **A.** ![Graph A](#)
- **B.** ![Graph B](#)
- **C.** ![Graph C](#)
- **D.** ![Graph D](#)

#### Linear Correlation Coefficient:

1. **Find the Linear Correlation Coefficient \( r \)**:
   - The linear correlation coefficient is \( r = \_\_\_\_\_\_\_\_\_\_\_\_\_\_ \).
   
    - \( r \) should be calculated and rounded to three decimal places as needed
Transcribed Image Text:## Data Analysis and Correlation ### Given Data Set The following table presents the values for variables \( x \) and \( y \): | \( x \) | 10 | 8 | 13 | 9 | 11 | 14 | 6 | 4 | 12 | 7 | 5 | |------|----|---|----|---|----|----|---|---|----|---|---| | \( y \) | 9.14 | 8.14 | 8.74 | 8.77 | 9.27 | 8.11 | 6.13 | 3.11 | 9.12 | 7.25 | 4.75 | ### Instructions: 1. **Scatterplot Construction**: - Construct a scatterplot using the provided data set to visually assess the relationship between variables \( x \) and \( y \). - Choose the correct scatterplot from the options provided (A, B, C, D). 2. **Scatterplot Options**: - **Option A**: Graph with a positive linear trend. - **Option B**: Shows a curved trend, indicating a potential non-linear relationship. - **Option C**: Graph with a negative linear trend. - **Option D**: Another graph with a positive linear trend but with a different pattern. 3. **Correlation Analysis**: - Calculate the linear correlation coefficient, \( r \), to evaluate the linear relationship between \( x \) and \( y \). - Round your answer to three decimal places as necessary. - Based on the calculated correlation coefficient, determine if there is sufficient evidence to support a claim of a linear correlation between the two variables. - Choose the correct statement from the provided options. #### Scatterplot Construction: **Choose the correct graph:** - **A.** ![Graph A](#) - **B.** ![Graph B](#) - **C.** ![Graph C](#) - **D.** ![Graph D](#) #### Linear Correlation Coefficient: 1. **Find the Linear Correlation Coefficient \( r \)**: - The linear correlation coefficient is \( r = \_\_\_\_\_\_\_\_\_\_\_\_\_\_ \). - \( r \) should be calculated and rounded to three decimal places as needed
Expert Solution
trending now

Trending now

This is a popular solution!

steps

Step by step

Solved in 4 steps with 2 images

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
  • SEE MORE 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