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Online Calculators

A range of web site which enable the calculation of Statistical principles.

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 Online Calculators EDGAR - Experimental Design Generator And Randomiser On-line software to randomise simple experimental designs.
  NetMul - On-line multivariate analysis system.
  On-line Statistical Power Calculator. - Java applets for power and sample size
  Simple Interactive Statistical Analysis - This site has several on-line calculators including exact tests, distributions, and sample size calculators. They also offer excellent discussions of the topics that are implemented in the calculators.
  The Bonferroni Adjustment Online Calculator - If you are conducting multiple hypothesis tests within a study, you very likely will need to adjust your alpha level. Use this online calculator to calculate the alpha level without correcting for the possibility of a type I error and get the Bonferroni adjusted alpha level. If you have questions about whether you need to adjust or not, this page has an excellent discussion of the issues involved.
  UCLA Statistical Calculators - They have calculators for regression, general linear models, t tests and power calculators as well as several graphing procedures such as histograms, Q-Q plots, and parallel boxplots.
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