TY - JOUR
T1 - {IFRA*t0} and {NBU*t0} classes of life distributions
AU - Zehui, Li
AU - Xiaohu, Li
PY - 1998/7/15
Y1 - 1998/7/15
N2 - The properties of IFRA and NBU of a component have been widely used in the theory of engineering reliability. In this paper, we deal with two new classes {IFRA*t0} and {NBU*t0} of life distributions. The first is characterized by an increasing failure rate average after t0, while for the second the life length of a new item is stochastically larger than the residual life length after t0. The properties of these classes are studied in detail. Furthermore, a nonparametric test is proposed which is designed to test the hypothesis whether a NBU*t0 element is strictly new better than used after time t0.
AB - The properties of IFRA and NBU of a component have been widely used in the theory of engineering reliability. In this paper, we deal with two new classes {IFRA*t0} and {NBU*t0} of life distributions. The first is characterized by an increasing failure rate average after t0, while for the second the life length of a new item is stochastically larger than the residual life length after t0. The properties of these classes are studied in detail. Furthermore, a nonparametric test is proposed which is designed to test the hypothesis whether a NBU*t0 element is strictly new better than used after time t0.
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U2 - 10.1016/S0378-3758(97)00188-2
DO - 10.1016/S0378-3758(97)00188-2
M3 - Article
AN - SCOPUS:0032527313
SN - 0378-3758
VL - 70
SP - 191
EP - 200
JO - Journal of Statistical Planning and Inference
JF - Journal of Statistical Planning and Inference
IS - 2
ER -