NCSS is a company based in the United States, operating within the retail sector, specifically focusing on consumer electronics and technology services. Established in 1981, the company employs between 51 and 200 individuals and generates significant revenue. NCSS specializes in statistical analysis and research methodologies, as evidenced by its published documents, which primarily consist of research articles. The themes of these articles include advanced statistical tests such as non-inferiority tests, superiority tests, and equivalence tests, often applied in cluster-randomized designs and cross-over studies. Their documents address various statistical procedures, including power comparisons for correlation tests and analyses involving treatment and control groups in clinical research contexts. The company’s focus on providing detailed methodologies and simulations highlights its expertise in statistical software and services, catering to professionals in the fields of research and data analysis. Overall, NCSS positions itself as a resource for those requiring robust statistical tools and insights in their research endeavors.