Facilities that focus on manufacturing and production track two kinds of costs: fixed costs and variable costs. The variable costs are those that change when production levels change: raw materials, ...

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 It is provided for historical reference. The content may be out of date and links may no longer function.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 ...

Analysis of variance (ANOVA) is a classical statistics technique that's used to infer if the unknown means (averages) of three or more groups are likely to all be equal or not, based on the variances ...

This short course provides an overview of statistical analyses useful for comparing the means for one or more samples. The statistical training will include the discussion of the one sample t-test, ...

For data selected from a finite population by stratified random sampling with equal probabilities and then randomly and independently assigned within each stratum to subsamples of a fixed number, ...