UNIVERSITY OF CALIFORNIA, LOS ANGELES
Department of Economics

Economics 143 (Cameron) - Applied Regression Analysis

NOTE: a cribsheet is provided as part of the exhibits with all exams. There is one typo--a missing over-bar on X in the formula for the confidence interval for mean prediction. This will be fixed in the version distributed during the exam.

NOTE: Prior to the Fall of 1997, the course used Version 7.0 of SHAZAM. In that version, the format of the p-values for hypothesis testing was different:

SHAZAM used to report the percentile of the t-distribution represented by the value of the t-test statistic in the p-value column of the regression output. This meant that p-values ranged from zero (if the t-ratio was a large negative number) up to 1.0000 (if the t-ratio was a large positive number). You needed a p-value less than 0.025 or greater than 0.975 in order to reject the zero hypothesis about the corresponding parameter at the 5% level of significance.
SHAZAM now reports something more intuitive, namely the probability of occurrence of a t-test statistic value larger in absolute value than the number appearing in the t-ratio column if the zero hypothesis is true. This is the "area in the two tails" cut off by the t-ratio value and its negative. Now, if the p-value is smaller than 0.05, it means that the zero hypothesis about the corresponding parameter is rejected at the 5% level of significance.
Past Midterm Exam Inventory
EXAM QUESTIONS FILES EXHIBITS SOLUTIONS
Econ 143
F'94
Midterm
Questions Not available Exhibits Key not available.
Econ 143
F'95
Midterm
Questions Not available Exhibits Solutions
Econ 143
F'97
Midterm
Questions
  mailroom.sha
  coffee.sha
  mailroom.dat
  coffee.dat
Exhibits Solutions
Econ 143
W'98
Midterm
Questions
  whoopie.sha
  whoopie.dat
Exhibits Solutions
Policy Studies 208
W'98
Midterm
Questions
  drycl.sha
  drycl.dat
Exhibits Solutions
Econ 143
F'98
Midterm
Questions
  smokes.sha
  smokes.dat
Exhibits Solutions


Past Final Exam Inventory
EXAM QUESTIONS FILES EXHIBITS SOLUTIONS
Econ 143
F'94
Final
Questions Not available Exhibits Solutions
Econ 143
F'95
Final
Questions Not available Exhibits  
Econ 143
F'97
Final
Questions   Exhibits Solutions
Econ 143
W'98
Final
Questions waffle.dat
czoned.prn
czonqe.prn
kidpop2.dat
recr.dat
Exhibits Solutions
Policy Studies 208
W'98
Final
Questions zhet2.dat
czonqe.prn
kidpop2.dat
Exhibits Solutions

Course Syllabus, Course Schedule, Lecture Outlines, Res. Proposal, Problem Sets,
Problem Keys, Computer Labs, SHAZAM Code, Data Sets, Flash Cards,
Online Quizzes, In the News, Java Applets, Virtual Handouts, Old Exams,
Instructor

Prepared by: Trudy Ann Cameron; Updated: 3:05 PM 10/5/98; site index