A regression was run to determine if there is a relationship between hours of TV watched per day, xx, and number of sit-ups, yy, a person can do in a minute. The results of the regression were: y=ax+b...

A regression was run to determine if there is a relationship between hours of TV watched per day, xx, and number of sit-ups, yy, a person can do in a minute.


The results of the regression were:
y=ax+b a=-1.054 b=21.963

Use this to predict the number of sit-ups a person who watches 2.52.5 hours of TV can do in a minute. Round to the nearest whole number.