Interdisciplinary Program in Statistics, University of Arizona, Tucson AZ 85721, USA. anling@email.arizona.edu.|Interdisciplinary Program in Statistics, University of Arizona, Tucson AZ 85721, USA. anling@email.arizona.edu.|Interdisciplinary Program in Statistics, University of Arizona, Tucson AZ 85721, USA. anling@email.arizona.edu.|Interdisciplinary Program in Statistics, University of Arizona, Tucson AZ 85721, USA. anling@email.arizona.edu.|Interdisciplinary Program in Statistics, University of Arizona, Tucson AZ 85721, USA. anling@email.arizona.edu.|Laboratório de Biologia Molecular Aplicada - LAPLIC, Departamento de Bioquímica, Centro de Biociências, Universidade Federal do Rio Grande do Norte, Natal, RN CEP: 59072-970, Brazil. danielclanza@gmail.com.