18 - Lecture 5

18 - Lecture 5 - Introduction to Econometrics Econ 322,...

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Unformatted text preview: Introduction to Econometrics Econ 322, Summer, 2011 Lecture 5: Review of Statistical Concepts Simple Linear Regression June 20, 2011 Lecture 5: Review of Statistical Concepts Simple Linear Regression () Introduction to Econometrics Econ 322, Summer, 2011 June 20, 2011 1 / 1 Topics Covered 1 One-sided tests 2 Con&dence intervals 3 Testing for di/erences in means 4 Correlation and Covariance Lecture 5: Review of Statistical Concepts Simple Linear Regression () Introduction to Econometrics Econ 322, Summer, 2011 June 20, 2011 2 1 One-Sided Hypothesis Tests So far we have looked at two di/erent ways of testing a statistical hypothesis when the alternative is a two-sided alternative. That is the test is H : = c vrs. H A : 6 = c . Lecture 5: Review of Statistical Concepts Simple Linear Regression () Introduction to Econometrics Econ 322, Summer, 2011 June 20, 2011 3 1 One-Sided Hypothesis Tests So far we have looked at two di/erent ways of testing a statistical hypothesis when the alternative is a two-sided alternative. That is the test is H : = c vrs. H A : 6 = c . To test this hypothesis we Lecture 5: Review of Statistical Concepts Simple Linear Regression () Introduction to Econometrics Econ 322, Summer, 2011 June 20, 2011 3 1 One-Sided Hypothesis Tests So far we have looked at two di/erent ways of testing a statistical hypothesis when the alternative is a two-sided alternative. That is the test is H : = c vrs. H A : 6 = c . To test this hypothesis we 1 calculated the p-value of the test Lecture 5: Review of Statistical Concepts Simple Linear Regression () Introduction to Econometrics Econ 322, Summer, 2011 June 20, 2011 3 1 One-Sided Hypothesis Tests So far we have looked at two di/erent ways of testing a statistical hypothesis when the alternative is a two-sided alternative. That is the test is H : = c vrs. H A : 6 = c . To test this hypothesis we 1 calculated the p-value of the test 2 set a &xed signi&cance level, calculated the critical value and compared this to the test statistic. Lecture 5: Review of Statistical Concepts Simple Linear Regression () Introduction to Econometrics Econ 322, Summer, 2011 June 20, 2011 3 1 One-Sided Hypothesis Tests (cont) Now consider the 1-sided test H : & c vrs. H A : > c . or H : c vrs. H A : < c . Lecture 5: Review of Statistical Concepts Simple Linear Regression () Introduction to Econometrics Econ 322, Summer, 2011 June 20, 2011 4 / 1 One-Sided Hypothesis Tests (cont) Now consider the 1-sided test H : & c vrs. H A : > c . or H : c vrs. H A : < c . In order to work out the p-value of a test we need to think about the following: Lecture 5: Review of Statistical Concepts Simple Linear Regression () Introduction to Econometrics Econ 322, Summer, 2011 June 20, 2011 4 / 1 One-Sided Hypothesis Tests (cont) Now consider the 1-sided test H : & c vrs. H A : > c ....
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This note was uploaded on 09/29/2011 for the course ECON 322 taught by Professor Francisco during the Summer '07 term at Rutgers.

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18 - Lecture 5 - Introduction to Econometrics Econ 322,...

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