Table of Contents
Significance Testing
Main Points
Rejecting Chance
Examples of H0
(continued)
Example: Calling an Election
H0: p < 50% For Candidate
The Test Statistic
p-value
Don’t confuse p and p
Deviation
Definition of p-value
z - value
Example
(reality check)
p-value is 2 x Tail Area tail = .01, so p=.02
Confidence = 1-p
Type I and II Errors
Two Proportions
continued
Two Means
continued
Other Test Stats
Other Tests continued
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Author: ITS
Email: george-woodworth@uiowa.edu
Home Page: http://www.stat.uiowa.edu/~gwoodwor/statsoc/lectures/LectureNotes.html
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