Science Journal of Applied Mathematics and Statistics

Archive

Volume 9, Issue 2, April 2021

  • Analyzing the Economic Development Using Partial Least Square Structural Model: A Case of Narok, Kenya

    Otieno Okumu Kevin, Samuel Muthiga Nganga

    Issue: Volume 9, Issue 2, April 2021
    Pages: 33-43
    Received: 18 December 2020
    Accepted: 25 December 2020
    Published: 17 March 2021
    DOI: 10.11648/j.sjams.20210902.11
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    Abstract: After the establishment of the Narok County government and the transition from the central system of government into the Devolved system of governance, majority of the residents of Narok County had much anticipation in terms of developments that will take place as a result of governance being brought close to them. The study was checking economic d... Show More
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  • Estimating the Parameters of (POGE-G) Distribution and Its Application to Egyptian Mortality Rates

    Abeer Mohamed, Amira Elghany, Gamalat Elgabry

    Issue: Volume 9, Issue 2, April 2021
    Pages: 44-56
    Received: 1 March 2021
    Accepted: 17 March 2021
    Published: 30 March 2021
    DOI: 10.11648/j.sjams.20210902.12
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    Abstract: In this paper, we consider power odd generalized exponential-Gompertz (POGE-G) distribution which is capable of life tables to calculate death rates (failure). Based on simulated data from the PPOGE-G distribution, we consider the problem of estimation of parameters under classical approaches and Bayesian approaches. In this regard, we obtain maxim... Show More
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  • A Comparison of the Lehmann and GLM ROC Models

    Melissa Innerst, Jack D. Tubbs, Musie Ghebremichael

    Issue: Volume 9, Issue 2, April 2021
    Pages: 57-72
    Received: 8 December 2020
    Accepted: 25 March 2021
    Published: 7 May 2021
    DOI: 10.11648/j.sjams.20210902.13
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    Abstract: Recently, several regression methods have been developed to model the receiver operating characteristic curve (ROC), as a measure of accuracy for potential biomarker use in diagnostic testing and disease detection. In this paper, we investigate the Lehmann ROC regression model and compare it to more commonly used ROC regression methods that are fou... Show More
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