On the Serfling-Wackerly Alternate Approach,
NORTH CAROLINA UNIV AT CHAPEL HILL DEPT OF STATISTICS
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For the problem of fixed-length interval estimation of the mean and median, the limiting distributions of the stopping rules recently introduced by Serfling and Wackerly are compared to those of Chow and Robbins as both the non-coverage probability alpha and interval length d converge to zero. The procedures based on the sample mean differ in the centering constants, while those based on the sample median also differ in the scaling constants.
- Statistics and Probability