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3. For this question use the following set of data points. 6. 8.77 9.26| 8.1 10 8 13 9. 11 14 4 12 7 9.14 8.14 8.74 6.13 3.10 9.13 7.26 4.74 (a) Find the value of the linear correlation coefficient r. (b) Use Excel with a = 0.05 to determine if there is evidence to support the claim of a linear correlation between the two variables. (c) Obtain a scatterplot and add a trendline. Display the equation of the line on the plot. (d) Which feature of the data would be missed if part (a) was completed without con- structing a scatterplot?

3. For this question use the following set of data points. 6. 8.77 9.26| 8.1 10 8 13 9. 11 14 4 12 7 9.14 8.14 8.74 6.13 3.10 9.13 7.26 4.74 (a) Find the value of the linear correlation coefficient r. (b) Use Excel with a = 0.05 to determine if there is evidence to support the claim of a linear correlation between the two variables. (c) Obtain a scatterplot and add a trendline. Display the equation of the line on the plot. (d) Which feature of the data would be missed if part (a) was completed without con- structing a scatterplot?

Glencoe Algebra 1, Student Edition, 9780079039897, 0079039898, 2018
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 24PFA
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3. For this question use the following set of data points. 10 8 13 9 11 14 6 4 12 7 9.14 8.14 8.74 8.77 9.26 8.1 6.13 3.10 9.13 7.26 4.74 (a) Find the value of the linear correlation coefficient r. (b) Use Excel with a = 0.05 to determine if there is evidence to support the claim of a linear correlation between the two variables. (c) Obtain a scatterplot and add a trendline. Display the equation of the line on the plot. (d) Which feature of the data would be missed if part (a) was completed without con- structing a scatterplot?
Transcribed Image Text:3. For this question use the following set of data points. 10 8 13 9 11 14 6 4 12 7 9.14 8.14 8.74 8.77 9.26 8.1 6.13 3.10 9.13 7.26 4.74 (a) Find the value of the linear correlation coefficient r. (b) Use Excel with a = 0.05 to determine if there is evidence to support the claim of a linear correlation between the two variables. (c) Obtain a scatterplot and add a trendline. Display the equation of the line on the plot. (d) Which feature of the data would be missed if part (a) was completed without con- structing a scatterplot?
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