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A NEW NADARAJAH-HAGHIGHI GENERALIZATION: SIMULATION AND APPLICATIONS
We introduce a new three-parameter model called the logistic Nadarajah-Haghighi distribution. The proposed distribution can produce an unimodal density overcoming a Nadarajah-Haghighi limitation. It is also more flexible than the baseline hazard rate function, allowing constant, increasing, decreasing and upsidedown-bathtub forms. We present the maximum likelihood estimators for the model parameters. A simulation study is carried out and we illustrate the usefulness of the new distribution by means of two applications to real data sets.
Hazard rate function; lifetime data; logistic-X family; maximum likelihood; Nadarajah-Haghighi distribution.
Análise de Sobrevivência
Renata Rojas Guerra, Fernando Arturo Peña-Ramírez, Gauss Moutinho Cordeiro