December 06, 2005
Regression Analysis (conclusion)
There are three ways to report regression results: in a table, as an equation with standard errors in parentheses, and as an equation with t ratios in parentheses.
Multiple regression is closely connected to the idea (common in economics) of showing the effects of changing one variable while holding other variables constant. Here we see that beta is the slope of the demand curve, and gamma is the shift that occurs when ads changes by one unit.
Other than a new formula for the degrees of freedom, constructing a confidence interval is a familiar process.
Posted by bparke at 10:45 PM | Comments (0)
Stata 4
Stata 4 will be the take-home part of your final exam. You will need these links for the data and the variable definitions. For those of you who are bandwidth-impaired, there is a truncated 1000 observation dataset.
Posted by bparke at 10:17 AM | Comments (0)
December 01, 2005
Regression Analysis (continued)
Posted by bparke at 10:38 PM | Comments (0)