In previous chapters, confidence intervals have been expressed in terms of a sample statistic plus or minus

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In previous chapters, confidence intervals have been expressed in terms of a sample statistic plus or minus a given expression x̅ + t(s/√n). However, the confidence interval for σ2  cannot be expressed as s2 plus or minus a comparable term. Why is this not possible?

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Introduction To Business Statistics

ISBN: 9780324381436

6th Edition

Authors: Ronald M. Weiers

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