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The mean of the inverse of a punctured normal distribution and its application

  • C. D. Lai*
  • , G. R. Wood
  • , C. G. Qiao
  • *Corresponding author for this work

    Research output: Contribution to journal › Article › peer-review

    Abstract

    The fundamental properties of a punctured normal distribution are studied. The results are applied to three issues concerning X/Y where X and Y are independent normal random variables with means μX and μY respectively. First, estimation of μX/ μY as a surrogate for E(X/Y) is justified, then the reason for preference of a weighted average, over an arithmetic average, as an estimator of μX/μY is given. Finally, an approximate confidence interval for μX/μY provided. A grain yield data set is used to illustrate the results.

    Original languageEnglish
    Pages (from-to)420-429
    Number of pages10
    JournalBiometrical Journal
    Volume46
    Issue number4
    DOIs
    Publication statusPublished - 2004

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