Use the given data set to complete parts (a) through (c) below. (Use a = 0.05.) 10 8 13 9. 11 14 6. 4 12 7 5 y 7.45 6.76 12.73 7.11 7.81 8.84 6.09 5.39 8.15 6.41 5.73 Click here to view a table of critical values for the correlation coefficient.

Glencoe Algebra 1, Student Edition, 9780079039897, 0079039898, 2018
18th Edition
ISBN:9780079039897
Author:Carter
Publisher:Carter
Chapter4: Equations Of Linear Functions
Section4.5: Correlation And Causation
Problem 23PFA
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Use the given data set to complete parts (a) through (c) below. (Use a = 0.05.)
10
8
13
9
11
14
6.
4
12
7
y
7.45
6.76
12.73
7.11
7.81
8.84
6.09
5.39
8.15
6.41
5.73
Click here to view a table of critical values for the correlation coefficient.
Transcribed Image Text:Use the given data set to complete parts (a) through (c) below. (Use a = 0.05.) 10 8 13 9 11 14 6. 4 12 7 y 7.45 6.76 12.73 7.11 7.81 8.84 6.09 5.39 8.15 6.41 5.73 Click here to view a table of critical values for the correlation coefficient.
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 r= .817.
(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.
A. There is sufficient evidence to support the claim of a nonlinear correlation between the two variables.
B. There is insufficient 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.
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 does not reveal a perfect straight-line pattern, and contains one outlier.
B. The scatterplot reveals a perfect straight-line pattern, except for the presence of one outlier.
C. The scatterplot does not reveal a perfect straight-line pattern.
D. The scatterplot reveals a perfect straight-line pattern and does not contain any outliers.
Transcribed Image Text: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 r= .817. (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. A. There is sufficient evidence to support the claim of a nonlinear correlation between the two variables. B. There is insufficient 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. 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 does not reveal a perfect straight-line pattern, and contains one outlier. B. The scatterplot reveals a perfect straight-line pattern, except for the presence of one outlier. C. The scatterplot does not reveal a perfect straight-line pattern. D. The scatterplot reveals a perfect straight-line pattern and does not contain any outliers.
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