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.

Meta-analysis is a commonly used approach to increase the sample size for genome-wide association searches when individual studies are otherwise underpowered. Here, we present a meta-analysis ...

Part I: The analysis of variance in the case of models with fixed effects and independent observations of equal variance -- Point estimation -- Construction of confidence ellipsoids and tests in the ...

A categorical variable is defined as one that can assume only a limited number of values. For example, a person's sex is a categorical variable that can assume one of two values. Variables with levels ...

MANOVA is a statistical test that extends the scope of the more commonly used ANOVA, that allows differences between three or more independent groups of explanatory (independent or predictor) ...

Please note: This item is from our archives and was published in 2012. It is provided for historical reference. The content may be out of date and links may no longer function. In his article ...

A variance occurs when expenses such as revenue or labor are either more or less than what the company anticipated and budgeted for. Hospitality businesses such as hotels and restaurants can ...

Every small business owner should have a budget that lays out the future course of the company's activities. A budget shows where the sales will come from and how the money will be spent, with the ...