1 Correction to: Statistical Methods & Applications. https://doi.org/10.1007/s10260-022-00665-y

When we published the article, the affiliation of the 3rd and 4th author were mixed-up.

Antonio D'Ambrosio is affiliated at Department of Economics and Statistics, and Roberta Siciliano is affiliated at Department of Electrical and Information Technology, both at the University of Naples Federico II.

The original publication has been corrected.