American Journal of Theoretical and Applied Statistics

Volume 8, Issue 2, March 2019

  • Comparison of Survival Analysis Approaches to Modelling Credit Risks

    Sammy Mungasi, Collins Odhiambo

    Issue: Volume 8, Issue 2, March 2019
    Pages: 39-46
    Received: Apr. 01, 2019
    Accepted: May 15, 2019
    Published: Jun. 05, 2019
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    Abstract: Credit risk is a critical area in finance and has drawn considerable research attention. As such, survival analysis has widely been used in credit risk, in particular to model debt’s time to default mechanisms. In this study, we revisit different survival analysis approaches as applied in credit risk defaulters’ data and assess their performance in... Show More
  • Bayesian Analysis of Retention and Graduation of Female Students of Higher Education Institution: The Case of Hawassa University (HU), Ethiopia

    Tsega Kahsay Gebretekle, Ayele Taye Goshu

    Issue: Volume 8, Issue 2, March 2019
    Pages: 47-66
    Received: Apr. 01, 2019
    Accepted: May 23, 2019
    Published: Jun. 10, 2019
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    Abstract: The study was conducted on female students who were 2005, 2006, 2007, and 2008 entries in the fields of Natural Science, Agriculture, and Social Science. From 1931 female students a sample of 605 was taken using stratified random sampling, Primary and secondary data were collected using questionnaire and analyzed using the Bayesian logistic regress... Show More
  • Determinants of Food Security status in Rural Households in Mojaena Wodera Woreda, Ethiopia

    Ayele Admasu

    Issue: Volume 8, Issue 2, March 2019
    Pages: 67-76
    Received: Apr. 27, 2019
    Accepted: Jun. 02, 2019
    Published: Jun. 13, 2019
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    Abstract: The main objective of this study was to assess household food security status and its major determinants in the rural households of Mojaena Wodera Woreda, Ethiopia. A systematic random sampling method was employed to select the sample from study area. The study period was from September 2017 to September 2018. The recommended daily calorie requirem... Show More
  • Consistency Inference Property of QIC in Selecting the True Working Correlation Structure for Generalized Estimating Equations

    Robert Nyamao Nyabwanga, Fredrick Onyango, Edgar Ouko Otumba

    Issue: Volume 8, Issue 2, March 2019
    Pages: 77-84
    Received: Mar. 28, 2019
    Accepted: May 29, 2019
    Published: Jun. 29, 2019
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    Abstract: The generalized estimating equations (GEE) is one of the statistical approaches for the analysis of longitudinal data with correlated response. A working correlation structure for the repeated measures of the outcome variable of a subject needs to be specified by this method and the GEE estimator for the regression parameter will be the most effici... Show More