4 7 0 0 / 4 - - , UV. 1 1 1 1 1 1 1 Length (cm) PCBs (mg/kg) 35.8 7.6 30.5 5.8 18.1 4.1 43.1 9 47.2 12.3 x = 34.94 V = 7.76 SX = 11.41 Sy = 3.14 Given that the correlation coefficient which relates length of the fish and PCB levels is r = 0.949, what is the slope of the regression equation that predicts PCB levels based on length? O A) 1.58896 O B) 0.94461 O C) 3.45000 D) 0.26116 (E) 8.72571Question 2 (2 points) You love fishing but are concerned at the levels of contaminants in fish in your local Kalamazoo River. As part of a study in monitoring levels of chemical contaminants in Carp fish in order to provide safe eating guidelines, you set about measuring levels of polychlorinated biphenyls (PCBs) in 5 randomly sampled fish caught in the Kalamazoo River. Data are summarized in the table below. Source: https://www.michigan.gov/mdhhs/0,5885,7-339-71548_54783_54784_54785_58671- 296074--,00.html Length (cm) PCBs (mg/kg) 35.8 7.6 30.5 5.8 18.1 4.1 43.1 9 47.2 12.3 = 34.94 7 = 7.76 SX = 11.41 Sy = 3.14 Given that the correlation coefficient which relates length of the fish and PCB levels is r = 0.949, what is the slope of the regression equation that predicts PCB levels based on length? A) 1.58896 ( B) 0.94461If we predict Y from x based solely from looking at the scatterplot and regression line, what Y value is associated with an X = 70? Scatterplot of Y vs X 23 22 21 20 19 18 17 16 15 14 30 50 60 70 80 90 100 X O A) 15 OB) 18.2 O c) 17 (D) 23 (E) 20