Statistical Estimation and Inference

ECON 222 is where probability stops being abstract and becomes a tool for actually saying something about the world from a finite sample — how confident you can be in an estimate, when a difference is real versus noise, and how to model relationships between variables. You'll spend the semester deriving estimators and their properties, building confidence intervals and hypothesis tests for one- and two-population problems, and then pivoting into linear regression (simple and multiple), with weekly lab work in a statistical package to actually run the procedures on data. It picks up directly from ECON 221's probability foundations and is the bridge into ECON 311 econometrics — basically, this is the course that teaches you to think like an empirical economist before you're trusted with real econometric modeling.