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IV. Inference

Pick correct method

http://www.ltcconline.net/greenl/java/Statistics/StatsMatch/StatsMatch.htm

A. Estimation (Conf Int)

See all sample intervals

http://www.ruf.rice.edu/~lane/stat_sim/conf_interval/index.html  

http://www.math.usu.edu/~schneit/CTIS/CI/  good!

  Control each variable in CI http://www.stat.tamu.edu/~west/applets/ci.html 

1.  Pop parameters

 

 

     Margin of Error

 

 

2.  Properties unbias/variability

 

 

3.  Logic of CI

calculates CI

http://faculty.vassar.edu/lowry/vsprops.html

4.  Large Sample CI for prop

 

 

5.  Large Sample CI diff two prop

 

 

6.  CI for means

see all sample intervals

http://www.math.csusb.edu/faculty/stanton/m262/confidence_means/confidence_means.html

7.  CI two means paired/unpair

 

 

8.  CI slope of regression line

 

 

B. Tests of Significance

 

 

1.  Logic

 

 

    null/alternative

 

 

     p-values

 

 

     1-2 sided tests

 

 

     type I/II 

 

 

     power

 

http://www.stat.tamu.edu/~west/applets/power.html  

http://wise.cgu.edu/powermod/power_applet.asp

2.  Large Sample CI for prop

 

 

3.  Large Sample CI diff two prop

 

 

4.  Test for mean

 

 

5.  Test diff two means

 

 

6.  Chi-Square

2x2 table demo

http://onlinestatbook.com/stat_sim/contingency/index.html

 

check fairness of dice

http://www.amstat.org/publications/jse/v16n3/ChiSquareApplet.html   GOOD

  contingency able http://www.stat.tamu.edu/~west/applets/contable.html 

      GOF

 

 

      Homogeniety of Prop

 

 

      Independence (1,2 way tables

 

 

7.  Test slope for LSRL