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Relations are derived for expectations of functions of generalized order statistics within a class of distributions including a variety of identities for single and product moments of ordinary order statistics and record values as particular cases. Since several models of ordered random variables are contained in the concept of generalized order statistics(More)
In this paper, we study the lower record values from an exponentiated gamma distribution and derive explicit expressions for the single, product, triple and quadruple moments. We also, establish recurrence relations for the single, product, triple and quadruple moments and moment generating function. 1. Introduction Record values are important in many(More)
Recombinant human erythropoietin (rHuEPO) has been successfully and safely used to treat anemia in patients with end stage renal disease (ESRD). The safety profile of rHuEPO had been considered to be excellent with possible exception of hypertension and increased risk of dialysis access thrombosis. Recently, antibody-mediated pure red cell aplasia(More)
In this article, our main aim is to investigate the parameters estimation of inverse Weibull distribution in the frame work of progressively type II. We consider the censored sample from a two parameters inverse Weibull. The point estimators of the parameters derived by using the maximum likelihood method. The exact joint confidence region and confidence(More)
In this paper, the concomitants of case-II of generalized order statistics from Farlie-Gumbel-Morgenstern (FGM) distributions and recurrence relations between their moments are studied. Further, we provide the minimum variance linear unbiased estimator of the location and scale parameters of the concomitants of ordinary order statistics from some(More)
Bayesian predictive functions for future observations from a generalized Pareto distribution based on generalized order statistics are obtained. Two cases are considered unknown one parameter and unknown two parameters. We also consider two cases fixed sample size and random sample size. The Bayesian predictive functions are specialized to ordinary order(More)
In this paper, we obtained based on record value, the maximum likelihood, minimum variance unbiased and Bayes estimators of the two parameters of the inverse Weibull distribution are computed and compared. A Bayesian prediction interval for the s th future record is obtained in a closed form. Based on simulated record values, numerical computations and(More)
The effect of some heavy metals on the urease activity was studied in a pure system using jack bean urease (JBU). While Mn showed no effect, copper reduced the enzyme activity more than did Zn or Fe at high concentrations (100 ppm). At a low concentration, iron reduced the enzyme activity more than at a high concentration. Inhibition of the urease activity(More)
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