Exact Tolerance Interval with Specified Tail Probabilities and a Control Chart for the Sample Variance

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dc.contributor.authorMosab Alqurashi
dc.contributor.authorSubha Chakraborti
dc.contributor.authorChase Holcombe
dc.date.accessioned2024-11-01T14:11:18Z
dc.date.available2024-11-01T14:11:18Z
dc.date.issued2022-12-02
dc.description.abstractA 𝛽-content tolerance interval (TI) is a statistical interval which contains at least some fraction (proportion) of the population with a given confidence level. When we are interested in the precision of a quality characteristic, a TI for the sample variance is useful. In this paper, we consider an exact two-sided 𝛽-content TI for the sample variance from a normal distribution with a specified ratio of the tail probabilities. The proposed tolerance interval allows the practitioner more control over how the probabilities in the tails are distributed, which may be useful in certain applications. A comparison with an existing two-sided 𝛽-content TI shows that the proposed TI is better on the basis of expected coverage and standard deviation of the coverage. In addition, the proposed TI is shown to require fewer subgroups to achieve a specific accuracy level. Moreover, a phase II control chart with guaranteed performance is obtained from the proposed TI. Finally, a real and a simulated data are used for illustration.
dc.identifier.citationAlqurashi M, Chakraborti S, Holcombe C. Exact tolerance interval with specified tail probabilities and a control chart for the sample variance. Qual Reliab Engng Int. 2023; 39: 283–301. https://doi.org/10.1002/qre.3238
dc.identifier.urihttps://ir.ua.edu/handle/123456789/14672
dc.language.isoen_US
dc.publisherWiley
dc.titleExact Tolerance Interval with Specified Tail Probabilities and a Control Chart for the Sample Variance
dc.typeArticle
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