__Econ 102: Analysis of Economics Data:
Supplemental Notes__

Previous exams and supplementary problems.

**Note Stata is used only from Fall 2012 onwards.**** Before
that ****Excel was used.
Stata and Excel use quite different commands to obtain p-values
and critical values for the t distribution.**

Critcial values:

Stata command invttail( ) considers only the right tail while
Excel command TINV( ) considers area in both tails.

For example, for a 95% confidence interval (or two-sided test at
5%) for t with 22 degrees of freedom use:

Stata command invttail(22,.025)

Excel command tinv(.05,22).

P-values:

Stata command ttail( ) considers only the right tail.

Excel command TINV( , , 1) also considers only the right tail
while TINV( , , 2) considers area in both tails.

- Formula Sheet (covers entire course and is provided with exams)
- Regression Exercises
- Solutions to Regression Exercises
- Spring 2016: Midterm 1 Exam
- Spring 2016: Midterm 1 Solutions
- Spring 2016: Midterm 2 Exam
- Spring 2016: Midterm 2 Solutions
- Spring 2016: Final Exam
- Spring 2016: Final Solutions
- Spring 2015: Midterm 1 Exam
- Spring 2015: Midterm 1 Solutions
- Spring 2015: Midterm 2 Exam
- Spring 2015: Midterm 2 Solutions
- Spring 2015: Final Exam
- Spring 2015: Final Solutions
- Winter 2014: Midterm 1 Exam
- Winter 2014: Midterm 1 Solutions
- Winter 2014: Midterm 2 Exam
- Winter 2014: Midterm 2 Solutions
- Winter 2014: Final Exam
- Winter 2014: Final Solutions

*A. Colin Cameron / UC-Davis Economics / http://www.econ.ucdavis.edu/faculty/cameron*