Please help answer the following business forecasting questions using only TEXT answers.

CoastCo Insurance, Inc., is interested in forecasting annual larceny thefts in the United States using the following data:

Year	Larceny Thefts
1972	4,151
1973	4,348
1974	5,263
1975	5,978
1976	6,271
1977	5,906
1978	5,983
1979	6,578
1980	7,137
1981	7,194
1982	7,143
1983	6,713
1984	6,592
1985	6,926
1986	7,257
1987	7,500
1988	7,706
1989	7,872
1990	7,946
1991	8,142
1992	7,915
1993	7,821
1994	7,876

(1) Prepare a time-series plot of these data. On the basis of this graph, do you think there is a trend in the data? Explain.

(2) Look at the autocorrelation structure of larceny thefts for lags of 1, 2, 3, 4, and 5. Do the autocorrelation coefficients fall quickly toward zero? Demonstrate that the critical value for r_k is 0.417. Explain what these results tell you about a trend in the data.

(3) On the basis of what is found in parts a and b, suggest a forecasting method that you think might be appropriate for this series.