The main objective of this study was to compare the performance of different ‘nonlinear
quantile regression’ models evaluated at the τth quantile -0·25, 0·50, and 0·75- of milk production
traits and somatic cell score -SCS- in Iranian Holstein...

at the time when the $n$-th $k$-record of any kind (either an upper or lower) is observed. Then, it is shown how various exact nonparametric confidence intervals can be construct based on these information. Confidence intervals for quantile intervals...