Journal of Statistical Theory and Applications

Volume 13, Issue 3, September 2014
Research Article

1. Estimation under a finite mixture of modified Weibull distributions based on censored data via EM algorithm with application

Saieed F. Ateya, Amirah S. Alharthi
Pages: 196 - 204
In this paper, the maximum likelihood estimates (MLE's) of the parameters of a finite mixture of modified Weibull (MW (alpha, beta, gamma)) distributions are obtained based on type-I and type-II censored samples using the EM algorithm. A simulation study is carried out to study the behavior of the mean...
Research Article

2. Some Inferences on the Levy distribution

M. Ahsanullah, Valery B. Nevzorov
Pages: 205 - 211
Some distributional properties of Levy distribution are presented. Limiting distributions of the extreme order statistics are given. Based on the distributional properties a characterization of the Levy distribution is shown.
Research Article

3. Augmented Strength Reliability of Equipment Under Gamma Distribution

N. Chandra, Subhradev Sen
Pages: 212 - 221
The strength-reliability of equipment is defined as the probability that the strength of the equipment exceeds its stress. Augmentation of strength-reliability of equipments gives better service protection and longevity. In this paper, the concept of Augmentation Strategy Plan (ASP) is introduced under...
Research Article

4. Characterizations of a Class of Distributions by Dual Generalized Order Statistics and Truncated Moments

Filippo Domma, G.G. Hamedani
Pages: 222 - 234
The problem of characterizing a distribution is an important problem which has recently attracted the attention of many researchers. Thus, various characterizations have been established in many different directions. The present work deals with the characterizations of a general class of distributions....
Research Article

5. Analysis of Covariance of Reinforced Balanced Incomplete Block Designs With a Single Explanatory Variable

D.K. Ghosh, M.G. Bhatt, S.C. Bagui
Pages: 235 - 246
Reinforced balanced incomplete block designs (BIBDs) are very useful in statistical planning of experiments as they can be constructed for any number of treatments for given numbers of replications. Das (1958) was first to introduce the statistical analysis of variance (ANOVA) of these designs, and in...
Research Article

6. On Record Values and Reliability Properties of Marshall–Olkin Extended Exponential Distribution

K.K. Jose, E. Krishna, Miroslav M. Ristic
Pages: 247 - 262
The Marshall–Olkin Extended Exponential distribution is introduced and reliability properties are studied. The p.d.f.’s of nth record value, joint p.d.f.’s, of mth and nth record values are derived to obtain the expression for mean, variance and covariance of reord values. The entropy of jth record value...
Research Article

7. Interactive Linear Models in Survey Sampling

Bikas K. Sinha, Pulakes Maiti
Pages: 263 - 272
Considered is a linear ‘interactive’ model in the context of survey sampling. This situation arises when investigator and/or supervisor interventions are contemplated in the responses. An appropriate linear model is introduced to represent the response profile(s) arising out of each respondent-cum-investigator-cum-supervisor...