The School District of
Palm Beach County

Test of Independent Proportions (Statistical Significance Calculator)

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Reverse Test of Independent Proportions (Significant Target Calculation Tool)

Instructions

 
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Other useful online resources:

VassarStats is a free, web-based, multi-platform set of applications for statistical computation developed by Dr. Richard Lowry at Vassar University.

Google Scholar is a simple way to broadly search for scholarly literature. From one place, you can search across many disciplines and sources: articles, theses, books, abstracts and court opinions, from academic publishers, professional societies, online repositories, universities and other web sites.