Confidence Intervals

The applets in this section of Statistical Java allow you to see how levels of confidence are achieved through repeated sampling. The confidence intervals are related to the probability of successes in a Binomial experiment. The main page gives the equation for finding confidence intervals and describes the parameters (p, n, alpha). Each applet allows you to change a different parameter and simulate sampling to demonstrate the long run proportion of intervals that contain the true probability of success. The applets are available from a pull-down menu at the bottom of the page. This page was formerly located at
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Author Name: 
S.Dorai-Raj, C.Anderson-Cook, T.Robinson
Technical Requirements: 
Netscape 4.0 and up, Explorer 5 and up
Source Code Available: 
Source Code Available
Intended User Role: 
Learner, Teacher
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Statistical Topic: 
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