Chapter 12: Linear Regression Concepts 18 Score: 2/20 3/20 answered Question 12 A regression analysis was performed to determine if there is a relationship between hours of TV watched per day (c) and number of sit ups a person can do (y). The results of the regression were: y=ax+b a=-1. 293 b=28:931 r2=0.388129 r=-0. 623 Use this to predict the number of sit ups a person who watches 3 hours of TV can do, and please round your answer to a whole number. Hint: Help Question Help: Message instructor Submit