1.A regression was run to determine if there is a relationship between hours of TV watched per day (x) and number of situps a person can do (y).

The results of the regression were:

y=ax+b a=-0.775 b=37.196 r2=0.412164 r=-0.642 

Use this to predict the number of situps a person who watches 6 hours of TV can do (to one decimal place)

2.A regression was run to determine if there is a relationship between hours of TV watched per day (x) and number of situps a person can do (y).

The results of the regression were:

y=ax+b a=-1.066 b=34.117 r2=0.919681 r=-0.959 

Use this to predict the number of situps a person who watches 7 hours of TV can do (to one decimal place)