Question 7 (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 O 43.1 9 47.2 12.3 = 34.94 J = 7.76 S = 11.41 Sy = 3.14 O Given that the correlation coefficient which relates length of the fish and PCB levels is r = 0.949, and using the predicted value and the RMS of the regression, there is a 95% chance that the actual PCB level in carp of 20cm falls between which two values. ( A) (0.91, 6.85) O B) (2.64, 8.14)Question 8 (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 y = 7.76 O SX = 11.41 Sy = 3.14 Given that the correlation coefficient which relates length of the fish and PCB levels is r = 0.949, and using the predicted value and the RMS of the regression, there is a O 99.7% chance that the actual PCB level of carp of 20 cm falls between which two values. O A) (4.47, 10.31) B) (1 90 5 86)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, and using the predicted value and the RMS of the regression, there is a 95% chance that the actual PCB level in carp of 20cm falls between which two values. O O A) (0.91, 6.85) O O B) (2.64, 8.14) O C) (1.88, 5.84) O D) (2.89, 4.87) (E) (5.13, 8.69)Length (cm) PCBs (mg/kg) 35.8 7.6 18.1 4.1 43.1 9 47.2 12.3 i = 34.94 7 = 7.76 sx=11.41 s =3.14 Given that the correlation coefficient which relates length of the fish and PCB levels is r = 0.949, and using the predicted value and the RMS of the regression, there is a 99.7% chance that the actual PCB level of carp of 20 cm falls between which two values. Q A) (4.47, 10.31) C) B) (1.90, 5.86) O C) (2.89, 4.87) O D) (5.13, 8.69) O E) (0.89, 6.83)