Econ 229 Introduction to Econometrics
Exam I Fall 2014
Question 1: Define the following terms
1. level of significance ( )
The maximum probability of a Type 1 error (rejecting the null hypothesis when it is true) that you are
willing to tolerate in a hypo
Econ 229 Homework Assignment 1 Answer Key
1. For categorical variables, it makes sense to do pie charts or bar charts. I would go with a pie
chart when we have two categories (e.g. sex) and either a pie chart or a bar chart when we have
more than two cate
Homework Assignment 4 (Practice for exam)
Do everything BY HAND (without using STATA or Excel)
Consider the following data set.
See the following spreadsheet for calculations
X-Xbar Y-Ybar Xbar)^2
Econ 229 Exam II
Consider the following time series regression that test whether the stock market (measured by the Dow
Jones Industrial Average djia) is influenced by the real economy (measured by real GDP realgdp).
Note that GDP is
Assignment 2 Answer Key
Suppose there is a population of a variable of X where it can take values 2, 4, 6 with equal probability.
Compute the population mean and the population variance of this variable.
The population mean (
), or the expected