INFERENTIAL STATISTICS ACTIVITY 1. Follow all directions. Show your COMPLETE Solution. Table 2 X y xy 2.5 3.4 6.25 8.50 3.0 4.9 9.00 14.70 3.3 5.5 10.89 18.15 3.5 6.6 12.25 23.10 3.8 7.0 14.44 26.60 4.0 7.7 16.00 30.80 4.2 8.3 17.64 34.86 4.5 8.7 20.25 39.15 Ex = 28.8 Ey = 52.1 E x2 = 106.72 Exy = 195.86 Find a slope a. nExy - (Xx)(Zy) nEx2 - ()x) (8)(195.86) - (28.8) (52.1) (8) (106.72) - (28.8)2 2.7303 Find & and y. - 2X 28.8 3.6 V = Ly 521 6.5125 Find the y-intercept b. b= y - ax 6.5125 - (2.7303) (3.6) - -3.31658 Use the information above to determine the equation of the least-squares line to predict the average speed of an adult man for each of the following stride lengths. Round your results to the nearest tenth of a meter per second. (2pts. Each) a. 2.30 m. b. 4.95 m