Problem 3: (8pts) A regression equation for z = handspan(em) and y = height (inches) of women is given by J - 51.2 + 07x. a) (2pts) Identify the slope and give an interpretation of its value in terms of the variables in the model. 51. 1 + 0. 7 ( 18 ) - 63.7 b) (2 pts) Identify the intercept and give an interpretation of its value in terms of the variables in the model. Is this a meaningful quantity? c) (2pts) What is the estimated average height of women with a handspan of 18 cm? d) (2pts) Molly has a handspan of 22 cm and is 67.5 inches tall. What is the prediction error {residual) for Molly