A data set is given below. (a) Draw a scatter diagram. Comment on the type of relation that appears to exist between x and y. (b) Given that x - 3.8333, s. = 2.3166, y =4.2167, s, = 1.7011, and r = -0.9381, determine the least-squares regression line. c) Graph the least-squares regression line on the scatter diagram drawn in part (a). 4 5 6 6 y 5.3 6.8 4.8 3.2 2.5 2.7 (a) Choose the correct graph below. OA. OB. O C. OD. O 17 There appears to be a linear, negative relationship. (b) y = - 0.689 x + 6.857 (Round to three decimal places as needed.) (c) Choose the correct graph below. O A. OB. O C. OD