Problem require a graphing calculator or a computer that can calculate the linear regression line for a given data set.

Find a linear regression model for the data on average annual temperature in Table 14, where x is years since 1960 and y is temperature (in °F). (Round regression coefficients to three decimal places). Use the model to estimate the average annual temperature in the contiguous United States in 2025.

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Table 14 Climate Data for the Contiguous United States Average Annual Temperature ('F) Average Annual Precipitation (in) Year 1965 51.69 29.80 1975 51.50 33.03 1985 51.30 29.97 1995 52.65 32.69 2005 53.64 30.08 2015 54.40 34.59