4.23 Use the mean of x, mean of y, standard deviation of x, standard deviation of y, r,scatterplotand y hat. Onthescatterplotdraw line when x = 40 and x = 60 , show ( x bar, y bar) is on the line and find the residual when x = 43.5. ( round to two decimal places throughout).

Knee height x 57.7 47.4 43.5 44.8 55.2 54.6 Height y 192.1 153.3 146.4 162.7 169.1 177.8