American Journal of Theoretical and Applied Statistics

Volume 4, Issue 1, January 2015

  • Order Statistics from Non-Identical Standard Type II Generalized Logistic Variables and Applications at Moments

    Z. AL-Saiary

    Issue: Volume 4, Issue 1, January 2015
    Pages: 1-5
    Received: 1 December 2014
    Accepted: 28 December 2014
    Published: 16 January 2015
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    Abstract: In this paper the moment generating function of order statistics arising from independent non-identically distributed (INID) Standard type II Generalized logistic (SGLII) variables is established. A recurrence relation for all moments of all order statistics arising from INID SGLII is computed. Special cases for moments are deduced using polygamma ... Show More
  • The Design of Experiment Application (DOE) in the Beneficiation of Cashew Chestnut in Northeastern Brazil

    Miriam Karla Rocha, Liane Márcia Freitas Silva, Alexandre José de Oliveira, André Lucena Duarte, Adrícia Fonseca Mendes, Messias Borges Silva

    Issue: Volume 4, Issue 1, January 2015
    Pages: 6-14
    Received: 20 December 2014
    Accepted: 6 January 2015
    Published: 19 January 2015
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    Abstract: Brazil is one of the world´s leaders in the production and processing of cashew chestnut and 100% of these cashew chestnut processing industries are located in the northeastern region of the country. For the maintenance and enlargement of the cashew chestnut market it is necessary to have a guarantee of the product quality by means of controlling t... Show More
  • Forecasting Inflation Rate in Kenya Using SARIMA Model

    Susan W. Gikungu, Anthony G. Waititu, John M. Kihoro

    Issue: Volume 4, Issue 1, January 2015
    Pages: 15-18
    Received: 16 December 2014
    Accepted: 8 January 2015
    Published: 20 January 2015
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    Abstract: It is the desire of the policy makers in a country is to have access to reliable forecast of inflation rate. This is achievable if an appropriate model with high predictive accuracy is used. In this paper, Seasonal Autoregressive Integrated Moving Average (SARIMA) model is developed to forecast Kenya's inflation rate using quarterly data for the pe... Show More
  • Multilevel Modeling of Determinants of Fertility Status of Married Women in Ethiopia

    Anteneh Mulugeta Eyasu

    Issue: Volume 4, Issue 1, January 2015
    Pages: 19-25
    Received: 21 December 2014
    Accepted: 11 January 2015
    Published: 21 January 2015
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    Abstract: The main objective of this study is to investigate the determinant factors of fertility status of married women in Ethiopia and to examine the reasons for variations of fertility across regions of Ethiopia based on data on 7052 married women obtained from Ethiopian Demographic and Health Survey (EDHS, 2011). Multilevel binary logistic regression mo... Show More
  • Bayesian Estimation Based on Record Values from Exponentiated Weibull Distribution: An Markov Chain Monte Carlo Approach

    Rashad Mohamed El-Sagheer

    Issue: Volume 4, Issue 1, January 2015
    Pages: 26-32
    Received: 10 January 2015
    Accepted: 13 January 2015
    Published: 23 January 2015
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    Abstract: In this paper, we consider the Bayes estimators of the unknown parameters of the exponentiated Weibull distribution (EWD) under the assumptions of gamma priors on both shape parameters. Point estimation and confidence intervals based on maximum likelihood and bootstrap methods are proposed. The Bayes estimators cannot be obtained in explicit forms.... Show More
  • Prediction Intervals for Future Order Statistics from Two Independent Sequences

    M. M. Mohie El-Din, M. S. Kotb, W. S. Emam

    Issue: Volume 4, Issue 1, January 2015
    Pages: 33-40
    Received: 23 December 2014
    Accepted: 6 January 2015
    Published: 2 February 2015
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    Abstract: In this article, based on observed X-sequence of independent and identically distribution (iid) continuous random variables, we discuss the problem of predicting future order statistics from a Y-sequence of iid continuous random variables from the same distribution. Specifically, distribution-free prediction intervals (PIs) for an order statistic o... Show More