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.
MATLAB: An Introduction with Applications
6th Edition
ISBN:9781119256830
Author:Amos Gilat
Publisher:Amos Gilat
Chapter1: Starting With Matlab
Section: Chapter Questions
Problem 1P
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Transcribed Image Text: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.
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