Sampling Distributions

Virtual Statistician

This site contains lessons which include steps, examples, and a calculator, on standard deviation, Pearson's r, t-test, one-way ANOVA, and Tukey's Post Hoc Test.

http://web.mst.edu/~psyworld/virtualstat.htm

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Analysis Tool: Empirical Distributions

This applet plots the survival function (1-F(t)) of the exponential distribution against the empirical survival function. The empirical survival function is one minus the empirical distribution function.

http://www.ms.uky.edu/~mai/java/stat/EmpDis.html

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Analysis Tool: Empirical Cumulative Distribution

This applet allows the user to enter data, then returns the values of empirical cumulative distribution function by sorting the data and reporting the height of the curve at each point. It does not show the graph.

http://home.ubalt.edu/ntsbarsh/Business-stat/otherapplets/ECDF.htm

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Theoretical Underpinnings of the Bootstrap

This page discusses the theory behind the bootstrap. It discusses the empirical distribution function as an approximation of the distribution function. It also introduces the parametric bootstrap.

http://www-stat.stanford.edu/~susan/courses/s208/node15.html

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Exploratory Data Analysis Case Studies (Engineering Statistics Handbook)

This part of the NIST Engineering Statistics Handbook contains case studies for Exploratory Data Analysis. Some of the topics include normal and uniform random numbers, reliability using airplane glass failure times, and analysis of primary factors using ceramic strength.

http://www.itl.nist.gov/div898/handbook/eda/section4/eda42.htm

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Electronic Statistics Textbook

This Electronic Statistics Textbook offers training in the understanding and application of statistics ... and covers a wide variety of applications, including laboratory research (biomedical, agricultural, etc.), business statistics and forecasting, social science statistics and survey research, data mining, engineering and quality control applications, and many others. Quoted from the index page of the text.

http://www.statsoft.com/textbook/stathome.html

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Sampling in Statistical Inference

This site gives an explanation, a definition and an example of sampling in statistical inference. Topics include parameters, statistics, sampling distributions, bias, and variability.

http://www.stat.yale.edu/Courses/1997-98/101/sampinf.htm

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Inference for Categorical Data

This site gives an explanation, a definition and an example of inference for categorical data. Topics include confidence intervals and significance tests for a single proportion, as well as comparison of two proportions.

http://www.stat.yale.edu/Courses/1997-98/101/catinf.htm

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Java Applets for Visualization of Statistical Concepts

This collection of applets simulate many different statistical concepts such as: distributions, correlation, hypothesis testing, regression, and ANOVA.

http://www.kuleuven.ac.be/ucs/java/

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Standard Error Calculator of Sample Means

This page calculates the standard error of a sampling distribution of sample means when users input the mean and standard deviation of the population and the sample size.

http://vassarstats.net/

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