Abstract
Fixed-width confidence intervals for the difference of location parameters of two independent negative exponential distributions are constructed via triple sampling when the scale parameters are unknown and unequal. The present three-stage estimation methodology is put forth because (i) it is operationally more convenient than the existing purely sequential counterpart, and (ii) the three-stage and the purely sequential estimation techniques have fairly similar asymptotic second-order characteristics.
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Mukhopadhyay, N., Padmanabhan, A.R. A note on three-stage confidence intervals for the difference of locations: The exponential case. Metrika 40, 121–128 (1993). https://doi.org/10.1007/BF02613670
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DOI: https://doi.org/10.1007/BF02613670