Gives textbook-like explanation with some real-life data to compute a t-test and determine if two population means are equal. Also has some links for case studies and a web-based program called Dataplot. There is a...
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 site, created by author William M.K. Trochim, describes numerous methods of nonprobability sampling, including accidental, haphazard or convenience sampling and many other types of purposive methods. Some of these...
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