A regression analysis was performed to determine if there is a relationship between hours of TV watched per day (xx) and number of sit ups a person can do (yy). The results of the regression were:...

A regression analysis was performed to determine if there is a relationship between hours of TV watched per day (xx) and number of sit ups a person can do (yy). The results of the regression were:

y=ax+b a=-1.284 b=39.963 r²=0.717409 r=-0.847

Use this to predict the number of sit ups a person who watches 8.5 hours of TV can do, and please round your answer to a whole number.