Comparison of industrial processes in the presence of trend

E. J. Snell
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E. J. Snell: Imperial College, Department of Mathematics

Chapter Example F in Applied Statistics, 1987, pp 34-37 from Springer

Abstract: Abstract In a plant-scale experiment on the production of a certain chemical, a batch of intermediate product was divided into six equal portions which were then processed on successive days by two different methods, P1 and P2. The order of treatment and the yields are given in Table F.1. It was expected that superposed on any process effect there would be a smooth, roughly parabolic trend. Experience of similar experiments showed that the standard deviation of a single observation was about 0.1.

Keywords: Orthogonal Polynomial; Process Effect; Single Observation; Equal Portion; Estimate Time Delay (search for similar items in EconPapers)
Date: 1987
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DOI: 10.1007/978-94-011-6946-2_9

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