Abstract
We discussed interval estimation briefly in Chapters 3 and 4. We shall recall briefly how interval estimation differs from the considerations of Chapters 5 and 7, in which D consisted of the possible values of some function ϕ of the unknown parameter value θ, the decision d0 meaning “my guess is that the true value of ϕ(θ) is d0.” Thus d0 was typically a single point of an interval D (i.e., for simplicity we think of the set of decisions as a real number interval), and these problems were termed ones of point estimation. If the decision is to be an interval of real numbers rather than a single point, the problem is called one of interval estimation. In a problem of this kind, a decision may be “my guess is that the table is between 4 and 4.3 feet long” rather than “my guess is that the table is 4.1 feet long.” Thus, if were discussing confidence intervals, D consists of a collection of intervals, and we may denote by [a, b] that decision which consists of the set of real numbers between a and b inclusive; the decision in the example of the table would be [4.0,4.3].
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© 1987 Springer-Verlag New York Inc.
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Kiefer, J.C. (1987). Confidence Intervals. In: Lorden, G. (eds) Introduction to Statistical Inference. Springer Texts in Statistics. Springer, New York, NY. https://doi.org/10.1007/978-1-4613-9578-2_9
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DOI: https://doi.org/10.1007/978-1-4613-9578-2_9
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