{Exercise 16.3} Dataset: [Xr16-03] To determine how the number of housing starts is affected by mortgage rates an economist recorded the average mortgage rate and the number of housing starts in a large county for the past 10 years. These data are listed in dataset. a. Determine the regression line (number of Starts = 60 + 61 . Rate). b1 = (to 2 decimals) b2 = (to 1 decimal) b. What do the coefficients of the regression line tell you about the relationship between mortgage rates and housing starts? The slope coefficient tells us that for each additional 1 percentage point increase in mortgage rates, the number of housing start: v Select in average by (to 2 decimals). Increases decreasesRate Starts 8.5 115 7.8 111 7.6 185 7.5 201 8.0 206 8.4 167 8.8 155 8.9 117 8.5 133 8.0 150