Two Bootstrap Strategies for ak-Problem up to Location-Scale with Dependent Samples

摘要

This paper extends the work of Quessy and Éthier (2012) who considered tests for thek-sample problem with dependent samples. Here, the marginal distributions are allowed, underH0, to differ according to their mean and their variance; in other words, one focuses on the shape of the distributions. Although easily stated, this problem nevertheless requires a careful treatment for the computation of validPvalues. To this end, two bootstrap strategies based on the multiplier central limit theorem are proposed, both exploiting a representation of the test statistics in terms of a Hadamard differentiable functional. This accounts for the fact that one works with empirically standardized data instead of the original observations. Simulations reported show the nice sample properties of the method based on Cramér-von Mises and characteristic function type statistics. The newly introduced tests are illustrated on the marginal distributions of the eight-dimensionalOil currencydata set.