Table A.5 gives the gross world product, G, which measures global output of goods and
Chapter 0, Problem 1(choose chapter or problem)
Table A.5 gives the gross world product, G, which measures global output of goods and services.3 If t is in years since 1950, the regression line for these data is G = 3.543 + 0.734t. (a) Plot the data and the regression line on the same axes. Does the line fit the data well? (b) Interpret the slope of the line in terms of gross world product. (c) Use the regression line to estimate gross world product in 2005 and in 2020. Comment on your confidence in the two predictions. Table A.5 G, in trillions of 1999 dollars Year 1950 1960 1970 1980 1990 2000 G 6.4 10.0 16.3 23.6 31.9 43.2
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