[R-sig-teaching] Graph critical region

[Charles Annis, P.E.]

This probably should be a FAQ.

You will find an example (with code) here, along with a bazillion other
example of nifty R graphics.

http://addictedtor.free.fr/graphiques/thumbs.php
http://addictedtor.free.fr/graphiques/RGraphGallery.php?graph=88


Charles Annis, P.E.

Charles.Annis at StatisticalEngineering.com
phone: 561-352-9699
eFax:  614-455-3265
http://www.StatisticalEngineering.com
 

-----Original Message-----
From: r-sig-teaching-bounces at r-project.org
[mailto:r-sig-teaching-bounces at r-project.org] On Behalf Of AbouEl-Makarim
Aboueissa
Sent: Tuesday, June 23, 2009 7:58 PM
To: R-sig-teaching at r-project.org
Subject: [R-sig-teaching] Graph critical region

Dear All:
 
I need some help with graphing the critical regions of hypothesis testing.
 
Consider the Z-test, assume Z=3.2, and alpha=0.05 (that is Z_(a.pha/2)=1.96.

 
Then how to graph the rejection region in the following three cases:
 
Left-tailed test
 
 
Right-tailed test
 
 
Two tailed test
 
 
 
Same for the T-test.
 
 
Thank you so much for your times.
 
Abou
 
 


==========================
AbouEl-Makarim Aboueissa, Ph.D.
Assistant Professor of Statistics
Department of Mathematics & Statistics
University of Southern Maine
96 Falmouth Street
P.O. Box 9300
Portland, ME 04104-9300

Tel: (207) 228-8389
Email: aaboueissa at usm.maine.edu
          aboueiss at yahoo.com
Office: 301C Payson Smith

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