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Improving Hall’s Accelerated Sequential Procedure: Generalized Multistage Fixed-Width Confidence Intervals for a Normal Mean

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Abstract

We have developed an innovative generalized multistage fixed-width confidence interval (FWCI) estimation procedure for an unknown normal mean when the variance also remains unknown, which can be viewed as a mixture of sequential sampling and batch sampling procedures. Requiring the same expected sample size as Hall’s accelerated sequential sampling procedure, it enables the number of sampling operations to be further reduced by a predetermined factor. Extensive sets of simulations are provided to highlight the remarkable performance of the new multistage FWCI estimation procedure, and real data illustrations are included to demonstrate the practical applicability.

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Acknowledgements

The author thanks anonymous reviewers for their valuable comments that helped preparing this revised manuscript.

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Correspondence to Jun Hu.

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Hu, J. Improving Hall’s Accelerated Sequential Procedure: Generalized Multistage Fixed-Width Confidence Intervals for a Normal Mean. Methodol Comput Appl Probab 23, 823–835 (2021). https://doi.org/10.1007/s11009-020-09786-x

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  • DOI: https://doi.org/10.1007/s11009-020-09786-x

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