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=-1.229 b=37.792 r²=0.388129 r=-0.623 Use this to predict the number of situps a person who watches 5.5 hours of TV can do (to one decimal place)