Learn what analysis of variance (ANOVA) is, how it works, and when to use it. See how it helps compare means across multiple data groups in statistics and research.

Discover how efficiency variance reveals the gap between expected and actual inputs in production and its impact on labor, materials, and costs.

Inherently-beneficial uses meet the statutory test as to whether there are special reasons for the variance, by their nature. But otherwise, the applicant must show that particular suitability of its ...