Conducting reliable and credible evaluation and statistical interpretation of empirical results related to the operation of production systems
in foundries is for most managers complicated and labour-intensive. Additionally, in many cases, statistical evaluation is either ignored
and considered a necessary evil, or is completely useless because of improper selection of methods and subsequent misinterpretation of the
results. In this article, after discussing the key elements necessary for the proper selection of statistical methods, a wide spectrum of these
methods has been presented, including regression analysis, uni- and multivariate correlation, one-way analysis of variance for factorial
designs, and selected forecasting methods. Each statistical method has been illustrated with numerous examples related to the foundry
practice.