A regression analysis was performed to determine if there is a relationship between hours of TV watched per day (x) and number of sit ups a person can do (y). The results of the regression were: y=ax+b a=-1.014 b-32.498 ²0.904401 r=-0.951 Use this to predict the number of sit ups a person who watches 13 hours of TV can do, and please round your answer to a whole number.

MATLAB: An Introduction with Applications
6th Edition
ISBN:9781119256830
Author:Amos Gilat
Publisher:Amos Gilat
Chapter1: Starting With Matlab
Section: Chapter Questions
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A regression analysis was performed to determine if there is a relationship between hours of TV watched per day \((x)\) and number of sit-ups a person can do \((y)\). The results of the regression were:

\[ y = ax + b \]
- \( a = -1.014 \)
- \( b = 32.498 \)
- \( r^2 = 0.904401 \)
- \( r = -0.951 \)

Use this to predict the number of sit-ups a person who watches 13 hours of TV can do, and please round your answer to a whole number.

\[ \boxed{} \]
Transcribed Image Text:A regression analysis was performed to determine if there is a relationship between hours of TV watched per day \((x)\) and number of sit-ups a person can do \((y)\). The results of the regression were: \[ y = ax + b \] - \( a = -1.014 \) - \( b = 32.498 \) - \( r^2 = 0.904401 \) - \( r = -0.951 \) Use this to predict the number of sit-ups a person who watches 13 hours of TV can do, and please round your answer to a whole number. \[ \boxed{} \]
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