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A regression analysis was performed to determine if there is a relationship between hours of TV watched per day (T) and number of sit ups a person can do (y). The results of the regression were: y=ax+b a=-0.948 b=30. 808 r2=0.683929 r=-0.827 Use this to predict the number of sit ups a person who watches 2.5 hours of TV can do, and please round your answer to a whole number. Hint: Help Submit