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Quality Quandaries - Box-Cox Transformations and Time Series Modeling - Part II

Summary: Quality engineers are increasingly asked to help with “Big Q” business issues that involve time series analysis and forecasting. In a previous column, the authors provided a discussion of how to apply Box-Cox transformations to sales data. In this continuation of the discussion, previously developed forecasting models are discussed and evaluated. A seasonal time-series model is also considered.

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  • Topics: Data Quality
  • Keywords: ARIMA time series models, Box-Cox model, Forecasting, Exponentially weighted moving average (EWMA)
  • Author: Bisgaard, Soren; Kulahci, Murat
  • Journal: Quality Engineering