Variances are Not Always Nuisance Parameters The 2002

  title={Variances are Not Always Nuisance Parameters The 2002},
  author={Ronald Aylmer Fisher and Shanti S. Gupta},
In classical problems, e.g., comparing two populations, fitting a regression surface, etc., variability is a nuisance parameter. The term ”nuisance parameter” is meant here in both the technical and the practical sense. However, there are many instances where understanding the structure of variability is just as central as understanding the mean structure. The purpose of this paper is to review a few of these problems. I focus in particular on two issues: (a) the determination of the validity… CONTINUE READING


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