Applied Statistics and Econometrics G31.1101 Fall 2005

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New York University

Department of Economics

Applied Statistics and Econometrics G31.1101

Topic

Review of Descriptive Statistics &

Basic Mathematical Tools

Probability Theory and Random Variables

Probability Theory

Single and Multi-dimensional Random Variables

Mathematical Expectations of Random Variables

Text &

Fall 2005

TEXTS :

Mathematical Statistics with Applications, 6 th

Edition, by D. Wackerly, W. Mendenhall, and R. Schaeffer (Duxbury)

Introductory Econometrics , 3 rd

Edition, by Jeffrey Wooldridge (South Western)

COURSE OUTLINE

MS: 1;

Chapter(s)

IE: Appendix A,

Appendix D

MS: 2 – 6;

IE: Appendix B

Appendix D

Estimation Techniques and

Statistical Inference

Properties of Estimators

Methods of Estimation

Confidence Intervals

Hypothesis Testing

Simple Linear Regression Analysis

Standard Assumptions and Functional Forms

Least Squares Estimation of Parameters

Statistical Tests of Model Parameters

MS: 7 – 10; 12 – 14;

IE: Appendix C

IE: 1 – 2;

MS: 11.1 – 11.9

Forecasting using a Single Explanatory Variable

Multiple Regression Analysis

Standard Assumptions and Matrix Formulation

Least Squares Estimation of Parameters

Statistical Tests of Model Parameters

IE: 3 – 6; Appendix E

MS: 11.10 – 11.14

Forecasting using Multiple Explanatory Variables

_______________________________________________________________________

Office Hours:

Office Information

Telephone Number:

Email:

Thursdays, 5:15 – 6:00 p.m.

269 Mercer Street, Room

(212) 435-4408 as44@nyu.edu

Course Requirements:

1.

2.

Mid-term Examination

Final Examination

(40%)

(45%)

3.

4.

Class Project

Homework

(10%)

( 5%)

There will be no “make-up” exam for the mid-term or the final. If you are unable to take the mid-term exam you may (a) choose to take an incomplete for the course and complete the requirements when the course is next offered, or (b) place a weight of 75% on the final exam.

Computer Requirements:

The statistical package EVIEWS will be used throughout the course. You will be issued a computer account with which to gain access to the software.

Lab Session:

The course consists of lecture and lab sessions. You should use the lab sessions to go over course materials, homework assignments, and computer-related issues.

Statistical Theory and Applications

Population

Central Tendency – Mode, Median, Arithmetic Mean, Geometric Mean

Dispersion -- Range, Mean Absolute Deviation, Variance/Standard Deviation, Coefficient of

Variation

Shape -- Skewness, Kurtosis

Probability

Counting outcomes; Permutation, Combination

Probability of an event

Marginal probability

Conditional probability

Independent events

Mutually exclusive events

Random Variables (Discrete and Continuous)

Density functions

Probabilities using a random variable

Expected value of a random variable

Variance/standard deviation of a random variable

Jointly distributed random variables

Marginal density

Conditional density

Covariance

Correlation coefficient

Functions of random variables

Expected value and variance of a sum of random variables

Specific random variables: Binomial, Hypergeometric, Geometric, Negative Binomial,

Poisson, Uniform,Triangular, Exponential, Normal, Logistic, Chi-square, Student “t,” F

Estimation

Important properties of an estimator: unbiasedness, minimum variance, sufficiency, consistency, linearity

Methods of estimation: moments, least squares, maximum likelihood

Point estimators for: mean, proportions, variance, difference of mean, paired differences, difference of proportions, ratio of variances

Confidence intervals

Hypothesis Testing and related issues

Type 1 and Type 11 errors

Hypothesis testing for: mean, proportions, variance, difference of mean, paired differences, difference of proportions, ratio of variances.

Probability of a Type 11 error

Goodness of Fit/Contingency Tables

ANOVA

Non-parametric tests

Optimal sample size

Simple and Multiple Regression Analysis

Population and regression Models

Econometric assumptions for the classical linear model

Functional forms of the population model

Regression models

Point estimation and related statistics

Least squares estimation of unknown population parameters

Residuals

Total, Explained and Unexplained Sum of Squares

Unadjusted R

2

, adjusted R

2

, and F statistics

Variance and standard error of a regression

Variances and covariances of coefficient estimators

Regression through the origin

Matrix formulation and solution of the classical linear model

Hypothesis Testing

Testing of individual coefficients

Testing of joint coefficients

Testing the overall model

Confidence intervals for unknown parameters

Forecasting

Moving average method

Exponential weighted moving average method

Point forecast using structural econometric models

Forecast interval using structural econometric models

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