Q. In a laboratory experiment, data were gathered on the life span (Yin months) of 33 rats, units of daily protein intake (X1), and whether or not agent X2 (a proposed life extending agent) was added to the rats diet (X2 = 0 if agent X2 was not added, and X2 = 1 if agent was added.) From the results of the experiment, the following regression model was developed Y= 36+ 0.8 X1-1.7X2 Also provided are SSR = 60 and SST = 180. 10. Refer to Exhibit above. From the above function, it can be said that the life expectancy of rats that were given agent X, is a. 1.7 months more than those who did not take agent X2 b. 1.7 months less than those who did not take agent X2 c. 0.8 months less than those who did not take agent X2 d. 0.8 months more than those who did not take agent X2 11. Refer to Exhibit above. The life expectancy of a rat that was given 3 units of protein daily, and who took agent X, is a. 36.7 b. 36 c. 49 d. 38.4 12. Refer to Exhibit above. The life expectancy of a rat that was not given any protein and that did not take agent X2 is a. 36.7 b. 34.3 C. 36 d. 38.4 13. Refer to Exhibit above. The life expectancy of a rat that was given 2 units of agent X2 daily, but was not given any protein is a. 32.6 Q. In a laboratory experiment, data were gathered on the life span (Yin months) of 33 rats, units of daily protein intake (X1), and whether or not agent X2 (a proposed life extending agent) was added to the rats diet (X2 = 0 if agent X2 was not added, and X2 = 1 if agent was added.) From the results of the experiment, the following regression model was developed Y= 36+ 0.8 X1-1.7X2 Also provided are SSR = 60 and SST = 180. 10. Refer to Exhibit above. From the above function, it can be said that the life expectancy of rats that were given agent X, is a. 1.7 months more than those who did not take agent X2 b. 1.7 months less than those who did not take agent X2 c. 0.8 months less than those who did not take agent X2 d. 0.8 months more than those who did not take agent X2 11. Refer to Exhibit above. The life expectancy of a rat that was given 3 units of protein daily, and who took agent X, is a. 36.7 b. 36 c. 49 d. 38.4 12. Refer to Exhibit above. The life expectancy of a rat that was not given any protein and that did not take agent X2 is a. 36.7 b. 34.3 C. 36 d. 38.4 13. Refer to Exhibit above. The life expectancy of a rat that was given 2 units of agent X2 daily, but was not given any protein is a. 32.6