Height X 11

Suppose a doctor measures the height, x, and head circumference, y, of 8 children and obtains the data below. The correlation coefficient is 0.873 and the least squares regression line is y = 0.286x + 9.645. Complete parts (a) through (c) below. Height, x 27.5 25.75 26.75 25 75 27 5 26.25 26 26.75 27 25 27 26.75 Head Circumference, y 17 5 17 0 17.1 16.9 17 6 17.2 17.2 17.4 17 3 17.4 17.3 (a) Compute the coefficient of determination, R- R2 =% (Round to one decimal place as needed.) (b) Construct a residual plot to verify the requirements of the least-squares regression model. O A. O B. OC. OD. 0.37 O 0.3- 0.3- 0.3 Residual Height (inches) Residual Height -0.3 0.3 25 -0.3 -0.3 28 25 28 25 28 25 28 Height (inches) Residual Height (inches) Residual Click to select your answer(s)