Journal of Statistical Theory and Applications

Volume 14, Issue 4, December 2015
Research Article

1. Characterizations of Distributions Via Conditional Expectation of Function of Generalized Order Statistics

Mohammad Ahsanullah, G.G. Hamedani, Indranil Ghosh
Pages: 350 - 358
Characterizations of probability distributions by different regression conditions on generalized order statistics have attracted the attention of many researchers. We present here, characterization of distributions based on the conditional expectation of generalized order statistics extending the characterization...
Research Article

2. On Hilbert C*-module-valued Random Variables

K. Shafie
Pages: 359 - 367
In this paper random variables that take their values from a Hilbert C*-module are defined and three definitions for the mean, covariance operator, and Gaussian distribution of these random variables are given and it is shown that these definitions are equivalent. Furthermore, the concept of covariance...
Research Article

3. A Weibull Generated Exponentiated Exponential Model: Properties and Bayes Interval Prediction

Essam K. Al-Hussaini, Alaa H. Abdel-Hamid
Pages: 368 - 382
Motivated by the fact that the so-called Weibull generated exponentiated exponential distribution (WGEED) accommodates for non-monotone as well as monotone hazard rate functions (HRFs), we give some properties of this WGEED and explore its use in life testing by obtaining Bayes prediction intervals of...
Research Article

4. Likelihood-based inference for the power half-normal distribution

Yolanda M. Gómez, Heleno Bolfarine
Pages: 383 - 398
In this paper we consider an extension of the half-normal distribution based on the distribution of the maximum of a random sample. It is shown that this distribution belongs to the family of beta generalized half-normal distributions. Properties of its density are investigated, maximum likelihood estimation...
Research Article

5. Dynamic Cumulative Residual and Past Inaccuracy Measures

Vikas Kumar, H.C. Taneja
Pages: 399 - 412
In this paper, we have developed measures of dynamic cumulative residual and past inaccuracy. We have studied characterization results under proportional hazard model in case of dynamic cumulative residual inaccuracy and under proportional reversed hazard model in case of dynamic cumulative past inaccuracy...
Research Article

6. Correlation Based Ridge Parameters in Ridge Regression with Heteroscedastic Errors and Outliers

A.V. Dorugade
Pages: 413 - 424
This paper introduces some new estimators for estimating ridge parameter, based on correlation between response and regressor variables for ridge regression analysis. A simulation study has been made to evaluate the performance of proposed estimators based on the minimum mean squared error (MSE) criterion...
Research Article

7. Some Generalizations of Weibull Distribution and Related Processes

K. Jayakumar, M. Girish Babu
Pages: 425 - 434
A new class of distributions containing Marshall-Olkin extended Weibull distribution is introduced. The role of this distribution in the study of minification process is established. A new class of distributions that includes the Laplace and Logistic distributions is introduced. Properties and generation...