This site, created by StatSoft, Inc., provides detailed discussions of many different types of experimental designs and examples with tables, graphs, and links to other detailed sites. The page combines text and images...
This is website, presented by Statistics Canada, examines the concept of non-probability sampling. It discusses types of non-probability sampling, differences between probability and non-probability sampling, and...
This site, created by author William M.K. Trochim, describes in detail five different types of random sampling. Some of these types include: simple random, stratified random, systematic random, cluster random,...
This applet, created by Tom Malloy of the University of Utah, demonstrates probability as the area under the normal and the standard normal curves. Students can manipulate mean, standard deviation, and lower and upper...
This applet allows you to explore the validity of confidence intervals on a proportion with various values for sample size (N) and population proportion (Pi). After you specify N, Pi, the level of confidence, and the...
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