Introductory Statistics for Economists
ECON 2500 – Winter 2011 – Xianghong Li
Chapter 7 – Inference for Distributions – Mar 29
Setting of Paired-t test
- Matched pair studies: subjects are matched in pairs and the outcomes are
compared within each matched pair.
- Two measures, e.g. before and after some treatment, from the same subjects.
- Draw inferences based on differences exactly the same as one-sample t
- Assumption: the population of differences has a normal distrib