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26. Sketch a scatter plot for the data given in Question 21. Include the regression line. Are outliers? Based on your graph, what type of correlation exists between the number of hours a student studied and his/her final grade (e.g., positive, negative)? there any

26. Sketch a scatter plot for the data given in Question 21. Include the regression line. Are outliers? Based on your graph, what type of correlation exists between the number of hours a student studied and his/her final grade (e.g., positive, negative)? there any

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 15PPS
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26. Sketch a scatter plot for the data given in Question 21. Include the regression line. Are there any outliers? Based on your graph, what type of correlation exists between the number of hours a student studied and his/her final grade (e.g., positive, negative)?
Transcribed Image Text:26. Sketch a scatter plot for the data given in Question 21. Include the regression line. Are there any outliers? Based on your graph, what type of correlation exists between the number of hours a student studied and his/her final grade (e.g., positive, negative)?
SECTION II: OPEN-ENDED vaull) For Questions 21-26, assume the requirements needed for each calculation are satisfied. 21. The table depicted below lists randomly selected students' self-reported hours of studying (x) and their corresponding final grades (y). a. Find the correlation coefficient r. b. Find the critical value. Is there a linear correlation (i.e., can H, be rejected)? Explain the result. с. 27 36 14 20 9. 16 y 93 100 82 89 71 86
Transcribed Image Text:SECTION II: OPEN-ENDED vaull) For Questions 21-26, assume the requirements needed for each calculation are satisfied. 21. The table depicted below lists randomly selected students' self-reported hours of studying (x) and their corresponding final grades (y). a. Find the correlation coefficient r. b. Find the critical value. Is there a linear correlation (i.e., can H, be rejected)? Explain the result. с. 27 36 14 20 9. 16 y 93 100 82 89 71 86
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