Gross national product: The United States gross national product, in trillions of dollars, is given in the table below. a. Find the equation of the regression line, and explain the meaning of its...

Gross national product: The United States gross national product, in trillions of dollars, is given in the table below.

a. Find the equation of the regression line, and explain the meaning of its slope. (Round regression line parameters to two decimal places.)

b. Plot the data points and the regression line.

c. Suppose that in 2006 a prominent economist predicted that by 2012, the gross national product would reach 18 trillion dollars. Does your information from part a support that conclusion? If not, when would you predict that a gross national product of 18 trillion dollars would be reached?