Objectives Methods accounting for competing risks in time-to-event problems are becoming common in mainstream statistical analyses. Standard approaches include those based on log-rank type tests [1] and cumulative incidence regression [2]. These approaches are based on weighting competing events by the censoring distribution. The usual cumulative incidence regression uses weights based on the p...

This study deals with point and interval estimations for the scale shape parameters of component lifetime distribution a k-component series system when lifetimes are assumed to be independently identically Erlang-truncated exponential distributions. It is that components exposed progressive Type-II censoring scheme. Each failure in this plan random subject binomial distribution. Parameter obtai...

Accelerated life tests are used to explore the lifetime of extremely reliable items by subjecting them elevated stress levels from stressors cause early failures, such as temperature, voltage, pressure, and so on. The alpha power inverse Weibull (APIW) distribution is great significance practical applications due its appealing characteristics, flexibilities in probability density function hazar...

This article presents a test based on quadratic form using Type-2 with replacement-censored sample for testing exponentiality against weibull IFR/DFR alternative. The percentile points and powers are simulated. The proposed test is compared with that of Bain and Engelhardt (1986) test. An example based on Type-2 censoring is also discussed.

objective: studies reported conflicting results’ regarding the status of depression and glycemic control in patients with type ii diabetes(t2dm), therefore, this study was performed to determine the relationship between depression and glycemic control in t2dm patients. materials and methods: this cross-sectional study was performed on 150 t2dm patients referred to yazd diabetes research center,...

tyrosinemia type ii is a rare autosomal recessive disorder wich can present itself with recurrent epithelial keratitis, hyperkeratotic skin lesions and mental retardation. this article reports the rare occurrence of this disease in both offsprings (two brothers) of a family (consanguinous'marriage) who were managed with a lowprotein diet and a special regimen.

In this paper, we insert and study a novel five-parameter extended Weibull distribution denominated as the Marshall–Olkin alpha power (MOAPEW) distribution. This distribution's statistical properties are discussed. Maximum likelihood estimations (MLE), maximum product spacing (MPS), Bayesian estimation for MOAPEW parameters obtained using Type I II censored samples. A numerical analysis Monte-C...