(Solved): A regression was run to determine if there is a relationship between hours of TV watched per day (x ...

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 $(\mathrm{y})$. The results of the regression were: $\begin{array}{l}y=ax+b\\ a=?1.029\\ b=21.63\\ r^2=0.630436\\ x=?0.794\end{array}$ Use this to predict the number of situps a person who watches 12.5 hours of TV can do (to one decimal place) Based on the data shown below, calculate the regression line (each value to at least two decimal places) $y=$