Did something change? using statistical techniques to interpret service and resource metrics
نویسنده
چکیده
In a perfect world, one would always know the answer to that question. Unfortunately, nobody works in a perfect world. This paper will explore statistical techniques used to look for deviations in metrics that are due to assignable causes as opposed to the period to period variation that is normally present. Hypothesis Testing, Statistical Process Control, Multivariate Adaptive Statistical Filtering, and Analysis of Variance will be compared and contrasted. SAS code will be used to perform the analysis. Exploratory analysis techniques will be used to build populations for analysis purposes.
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