stat400lec32 - Statistics 400 Tests of Statistical...

Info iconThis preview shows pages 1–3. Sign up to view the full content.

View Full Document Right Arrow Icon
Statistics 400 Tests of Statistical Hypotheses Simple hypothesis Composite Hypothesis Types of Error Type I Error: If we reject Ho when Ho is true Type II Error: If we do not reject Ho when Ho is false Ho True Ha True Reject Ho Type I error Correct Decision Do not reject Ho Correct Decision Type II error α = P(Type I error) β = P(Type II error) Ping Ma Lecture 32 Fall 2005 - 1 -
Background image of page 1

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

View Full DocumentRight Arrow Icon
You are inspecting light bulbs to determine whether they are defective or not. Ho: The bulbs are not defective Ha: The bulbs are defective Reject Ho if bulbs are defective Do not reject Ho if bulbs are not defective Draw a table like above to characterize the Type I and Type II errors associated with this example. Ho: Bulbs are not defective Ha: Bulbs are defective Reject Bulbs Do not reject Bulbs The significance level α is the probability of a Type I error. It is the probability that the test will reject the null hypothesis when Ho is true. Ping Ma
Background image of page 2
Image of page 3
This is the end of the preview. Sign up to access the rest of the document.

This note was uploaded on 07/24/2008 for the course STAT 400 taught by Professor Tba during the Fall '05 term at University of Illinois at Urbana–Champaign.

Page1 / 6

stat400lec32 - Statistics 400 Tests of Statistical...

This preview shows document pages 1 - 3. Sign up to view the full document.

View Full Document Right Arrow Icon
Ask a homework question - tutors are online