You are conducting a study testing whether a child's age is a good predictor of his or her height. You have collected the following data from a random sample of seven children: Perform a regression of height (dependent variable) on age (independent variable). What is the -intercept of the regression line? 39.0724.7359.7060.4658.37 What is the slope (beta) of the regression line? 1.611.270.451.310.78 The regression model predicts that a 5 -year-old child ( 60 months) would be approximately tall