Question

al. 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 Co, 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. Year Non-U.S. U.S. 1990 3.6 19.2 1991 3.6 1992 3.5 1994 3.3 1995 3.3 1997 3.4 1998 3.3 1999 3.2 2004 3.7 2005 3.8 19.0 18.8 19.8 19.5 20.0 19.5 19.6 19.6 19.5 Send data to Excel Part: 0/3 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:

Answer 1

Using regression analysis in software

Let,

Y=U.S. emmisions

X=non U.S. emmisions

regression equation for Y is:

ŷ = -0.59557(X) + 21.51662

i.e.

regression equation for Y is:

ŷ = -0.5956(X) + 21.5166