Institution: | 1.Statistics and Applied Math Department, Universidade Federal do Ceará, Fortaleza, CE, 60455-760, Brazil ;2.Graduate Programs in Statistics and Management Engineering, Universidade Federal de Pernambuco, Recife, PE, 50740-550, Brazil ;3.Universidade Federal do Ceará, Crateús, CE, 63700-000, Brazil ;4.Graduate Program in Modelling and Quantitative Methods, Fortaleza, CE, 60455-760, Brazil ; |