Homework 6 Exercises: Section 1. Table 1. Annual U.S. GDP and %Change Year GDP % Change Year GDP % Change 1975 4084.4 1988 6368.4 4.17 1976 4311.7 5.57 1989 6591.8 3.51 1977 4511.8 4.64 1990 6707.9 1.76 1978 4760.6 5.51 1991 6676.4 -0.47 1979 4912.1 3.18 1992 6880 3.05 1980 4900.9 -0.23 1993 7062.6 2.65 1981 5021 2.45 1994 7347.7 4.04 1982 4919.3 -2.03 1995 7543.8 2.67 1983 5132.3 4.33 1996 7813.2 3.57 1984 5505.2 7.27 1997 8159.5 4.43 1985 5717.1 3.85 1998 8515.7 4.37 1986 5912.4 3.42 1999 8875.8 4.23 1987 6113.3 3.40 la. Compute a 95% confidence interval for the population average of the %Change in GDP. (The data set can be copied and pasted into Excel.) 1b. Complete this sentence based on your result for the first question: "We are 95% confident that ...."