The file P02_24.xlsx contains time series data on the percentage of the resident population in the United States who completed four or more years of college.
a. Specify one or more promising auto regression models based on autocorrelations of this time series. Estimate each model with the available data. Which model provides the best fit to the data?
b. Use the best auto regression model from part a to produce forecasts of higher education attainment in the United States in the next three years.