Plot the defense expenditures time-series data

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Liberal members of Congress have asserted that the U.S. federal government has been expending an increasing portion of the nation's resources on the military and intelligence agencies. The following table contains the outlays (in billions of dollars) for the Defense Department and associated intelligence agencies since 1980. The data are also given as a percentage of gross national product (% GNP).

Year Expenditure %GNP Year Expenditure %GNP
1980 134 4.9 1993 291 4.4
1981 158 5.2 1994 282 4.1
1982 185 5.8 1995 272 3.7
1983 210 6.1 1996 266 3.5
1984 227 6 1997 271 3.3
1985 253 6.1 1998 269 3.1
1986 273 6.2 1999 275 3
1987 282 6.1 2000 295 3
1988 290 5.9 2001 306 3
1989 304 5.7 2002 349 3.4
1990 299 5.2 2003 376 3.5
1991 273 4.6 2004 391 3.5
1992 298 4.8


a. Plot the defense expenditures time-series data and describe any trends across the time 1980 to 2004.

b. Plot the %GNP time-series data and describe any trends across the time 1980 to 2004.

c. Do the two time series have similar trends? Do either of the plots support the members of Congress assertions?

Reference no: EM131017851

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