Carbon dioxide CO2 is produced by burning fossil fuels such as oil and natural gas, and has been connected to global warming. The following table presents the average amounts (in metric tons) of CO2 emissions for certain years per person in the United States and per person in the rest of the world. Use a TI-84 calculator to answer the following.

Part 1 of 3 (a) Compute the least-squares regression line for predicting U.S. emissions from non-U.S. emissions. Round the slope and y-intercept values to four decimal places. Regression line equation: y = -2.1222x + 26.7091 Part: 1 / 3 Part 2 of 3 (b) If the non-U.S. emissions differ by 0.2 from one year to the next, by how much would you predict the U.S. emissions to differ? Round your answer to four decimal places. The U.S. emissions would differ by metric tons. X