Simultaneous confidence intervals for ordered pairwise differences of exponential location parameters under heteroscedasticity

This article deals with the extension of the two-stage and one-stage procedures for successive differences of location parameters of k independent two-parameter exponential distributions proposed by Maurya et al. (2011). While maintaining the advantages of the Maurya et al. (2011) procedure, our proposed procedure has more power for rejecting the null hypothesis of homogeneity of several location parameters in favour of the alternative. Finally, a numerical example is given to illustrate the advantages of the proposed procedure.