Estimates of the covariance matrix of vectors of u-statistics and confidence regions for vectors of Kendall's tau
Consistent estimators of the asymptotic covariance matrix of vectors of -statistics are used in constructing asymptotic confidence regions for vectors of Kendall’s correlation coefficients corresponding to various pairs of components of a random vector. The regions are products of intervals computed by means of a critical value from multivariate normal distribution. The regularity of the asymptotic covariance matrix of the vector of Kendall’s sample coefficients is proved in the case of sampling...