A regression was run to determine if there is a relationship between hours of TV watched per day ( x x ) and number of situps a person can do ( y y ). The results of the regression were: y=ax+b
a=-1.154
b=23.666 r2=0.473344
r=-0.688
Use this to predict the number of situps a person who watches 5 hour(s) of TV can do, and please round your answer to a whole number.
x: hours of TV watched per day
y: number of situps a person can do
y=ax+b
where a=-1.154 b=23.666
The regression equation is
y = -1.154 + 23.666 (x)
predict the number of situps a person who watches 5 hour(s) of TV can do
i.e. x =5 hours
y= -1.154 + 23.666(5)
= -1.154 + 118.33
= 117.18 ~~ 117
117 situps a person can do when he watches 5 hour(s) of TV
A regression was run to determine if there is a relationship between hours of TV watched...