9. Using your calculator or Excel find the line of best fit (regression line) for the data given in the table on hours a student watches TV per week and their overall GPA a. Regression line equation, y ? TV GPA Hours 20 2.0 b. Give the slope and then give the y-intercept. 10 2.46 25 2.3 15 2.9 14 3.0 c. Give the correlation, r. 12 3.1 7 3.4 22 3.5 d. Use the Pearson table on the formula sheet to find the Pearson 3.7 Critical Value for an a .05 and n 9. e. Is r statistically significant based on the Pearson value? f. If so, use the regression line to find the GPA for 8 hours of TV per week.

9. Using your calculator or Excel find the line of best fit (regression line) for the data given in the table on hours a student watches TV per week and their overall GPA a. Regression line equation, y ? TV GPA Hours 20 2.0 b. Give the slope and then give the y-intercept. 10 2.46 25 2.3 15 2.9 14 3.0 c. Give the correlation, r. 12 3.1 7 3.4 22 3.5 d. Use the Pearson table on the formula sheet to find the Pearson 3.7 Critical Value for an a .05 and n 9. e. Is r statistically significant based on the Pearson value? f. If so, use the regression line to find the GPA for 8 hours of TV per week.

Glencoe Algebra 1, Student Edition, 9780079039897, 0079039898, 2018

18th Edition

ISBN:9780079039897

Author:Carter

Publisher:Carter

Chapter4: Equations Of Linear Functions

Section4.6: Regression And Median-fit Lines

Problem 6PPS

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