Section 13.1 Summary

1. This section examines inferential methods for regression analysis. The regression model, or the (population) regression equation, is , where is the intercept of the population regression line, is the slope of the population regression line, and is the error term.
2. A hypothesis test may be performed to determine whether a linear relationship exists between and .
3. We can construct confidence intervals for the true value of the population regression slope because it is unknown.