Let <italic>X</italic> and <italic>Y</italic> have two-parameter Burr XII distributions. The maximum-likelihood estimator of δ=<italic>P</italic>(<italic>X</italic><italic>Y</italic>) is studied under the progressively first failure-censored samples. Three confidence intervals of δ are constructed by using an asymptotic distribution of the maximum-likelihood estimator of δ...

In this article, an acceptance sampling procedure for the gamma lifetime model is established under the interval censored test. Both producer and consumer risks are considered to develop the ordinary and approximate sampling plans with grouped data. Some of the proposed sampling plans are...