Confidence and Significance

10/26/99


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Table of Contents

Confidence and Significance

Statistics and Parameters

Confidence Interval for m

Example I: Cost of Eating Out

Computations

2 Groups: Stats and Parameters

SE of a Difference

Example 2: D of Means

Confidence Interval for D

Is the Difference Significant?

Significant Difference

Ex 3. D of Proportions

PPT Slide

(Remember SEP?)

CI for Difference

Does it Rule out D = 0?

Ex 4: You Do

Computations

CI and Sig. of RR and OR

Example 5

Example 6

RR for Lung Cancer

Author: UNIVERSITY OF IOWA

Email: george-woodworth@uiowa.edu

Home Page: http://www.stat.uiowa.edu/~gwoodwor/statsoc/lectures/LectureNotes.html