A regression was run to determine if there is a relationship between hours of TV watched per day (x) and the number of sit-ups a person can do (y). The results were: y = a+bx b = -0.79 a = 23.38 r² = 0.5396 r = -0.7346
A regression was run to determine if there is a relationship between hours of TV watched per day (x) and the number of sit-ups a person can do (y). The results were: y = a+bx b = -0.79 a = 23.38 r² = 0.5396 r = -0.7346
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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Question
![A regression was run to determine if there is a relationship between hours of TV watched per day (x) and
the number of sit-ups a person can do (y). The results were:
= a+bx
y
b = -0.79
a = 23.38
r
= 0.5396
= -0.7346
a. If a person watches 16 hours of television a day, predict how many sit-ups he can do.
b. If a person can do 8 sit ups, predict how many hours of television a day they watch.
hours](/v2/_next/image?url=https%3A%2F%2Fcontent.bartleby.com%2Fqna-images%2Fquestion%2Fa04eb202-bcff-462b-a878-efbd37103f75%2F13c6ea11-347f-400a-9e01-4a5a7ede2a17%2Fb3savl_processed.png&w=3840&q=75)
Transcribed Image Text:A regression was run to determine if there is a relationship between hours of TV watched per day (x) and
the number of sit-ups a person can do (y). The results were:
= a+bx
y
b = -0.79
a = 23.38
r
= 0.5396
= -0.7346
a. If a person watches 16 hours of television a day, predict how many sit-ups he can do.
b. If a person can do 8 sit ups, predict how many hours of television a day they watch.
hours
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