# Lecture24 - ECO220Y Lecture 24 Introduction to Hypothesis...

This preview shows pages 1–6. Sign up to view the full content.

ECO220Y Lecture 24 CO220 ectu e 2 Introduction to Hypothesis Testing Migiwa Tanaka Reading:11.1 1

This preview has intentionally blurred sections. Sign up to view the full version.

View Full Document
utline Outline Introduction to Hypothesis Testing Testing population mean when the population variance is known Rejection Region Method p-value Method One-tail vs. two-tail Test Calculating the probability of a type II error 2
ypothesis Testing Hypothesis Testing Step1: Identify hypotheses about a population parameter Step2: Collect a sample ep3: Conduct hypothesis testing: Conclude whether Step3: the hypotheses set up in step 1 is true or not, using evidence found in the sample. A. Calculate a test statistic B. Compare A. with the decision criteria 3

This preview has intentionally blurred sections. Sign up to view the full version.

View Full Document
Analogy with Criminal Trial (1) ypothesis Testing i i l Til Hypothesis Testing Criminal Trial Unknown: Population Unknown: Defendant’s Guilt Parameter Construct hypotheses about opulation parameter Construct hypotheses about defendant’s guilt population parameter. Collect a sample from the population Collect evidence relevant to the crime. Calculate test statistics. Based on the evidence in a sample, test hypothesis. Based on the evidence, test hypothesis 4
ypotheses Hypotheses All hypotheses are constructed in a pair. ll H th i I iti l ti b t th 1. Null Hypothesis (H 0 ): Initial presumption about the population, which is not based on the data.

This preview has intentionally blurred sections. Sign up to view the full version.

View Full Document
This is the end of the preview. Sign up to access the rest of the document.

## This note was uploaded on 03/01/2011 for the course ECON 220 taught by Professor Tanaka during the Spring '11 term at University of Toronto- Toronto.

### Page1 / 13

Lecture24 - ECO220Y Lecture 24 Introduction to Hypothesis...

This preview shows document pages 1 - 6. Sign up to view the full document.

View Full Document
Ask a homework question - tutors are online