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In this text, we reintroduce one of the sharpest tools for designing an experiment, the computer program Gosset. Gosset was developed at AT&T Bell Laboratories in the 1980s. Although a few companies and researchers have used Gosset extensively, experimentalists across the world can benefit from its powerful features. The developers of Gosset released it for free to the public domain in 2018. We demonstrate Gosset in Chapter 9. With skill using Gosset, your axe will be sharper.

We also encourage use of one of the sharpest tools for data analysis, the R language. The R language is open‐source software, available for free. In addition to the basic package, thousands of researchers from around the world have contributed specialized enhancements to R, also available for free. We demonstrate how to use R for data analysis, statistics, model design, and uncertainty analysis in Chapters 7–10 and 13. If you use an alternative commercial package for statistical analysis, you can test and compare.