Sample Size Determination for Estimation of Guarantee Times

M. M. Desu, Subhash C. Narula and Bernardo Villarreal

Journal of the Royal Statistical Society Series C, 1976, vol. 25, issue 3, 275-279

Abstract: The problem of estimating the guarantee time of a two‐parameter exponential distribution is considered. The number of observations needed, such that an estimator satisfies a specification, is determined. When the failure rate is unknown, a two‐stage estimation procedure similar to Stein's (1945) procedure, is considered. A method for choosing the first‐stage sample is given. The problem of estimating the difference between two guarantee times is also considered.

Date: 1976
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