American Journal of Theoretical and Applied Statistics

Volume 12, Issue 5, September 2023

  • Survival Analysis of COVID-19 Patients: A Case Study of AIC Kijabe Hospital

    Roseline Achieng Oburu, Joseph Eyang’an Esekon, Martin Mutwiri Kithinji

    Issue: Volume 12, Issue 5, September 2023
    Pages: 103-109
    Received: 4 August 2023
    Accepted: 28 August 2023
    Published: 12 September 2023
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    Abstract: COVID-19 is an infectious disease caused by the novel coronavirus: severe acute respiratory syndrome coronavirus 2 (SARS-CoV-2) virus. The disease quickly spread, resulting in an epidemic in China and a number of cases in other countries around the world. This led to inconsistent health conditions and caused unceasing loss of human lives. Globally,... Show More
  • Bayesian Binary Quantile Regression for Modelling Injectable Contraceptive Uptake Among Child Bearing Women in Kenya

    Dan Kipkosgei Kogei, Anthony Wanjoya, Joel Chelule, Lena Onyango

    Issue: Volume 12, Issue 5, September 2023
    Pages: 110-116
    Received: 31 August 2023
    Accepted: 14 September 2023
    Published: 27 September 2023
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    Abstract: Injectable contraceptives are methods of contraception that is administered through injection. In the recent times, injectable contraceptives have been preferred to other modern contraceptives by child bearing women which implies that there are factors contributing to this surge in the usage of injectable contraceptives. Currently in Kenya, injecta... Show More
  • Residual Reduced Balanced Incomplete Block Design

    Troon John Benedict, Onyango Fredrick, Karanjah Anthony

    Issue: Volume 12, Issue 5, September 2023
    Pages: 117-119
    Received: 11 June 2023
    Accepted: 29 June 2023
    Published: 14 October 2023
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    Abstract: The construction of Balanced Incomplete Block Designs is a combination problem that involves the arrangement of v treatments into b blocks each of size k such that each treatment is replicated exactly r times in the design and a pair of treatments occur together in λ blocks. Researchers have devised a number of methods that can be used in construct... Show More
  • Research Article

    Classification of Contraceptive Use Among Undergraduate Students Using a Supervised Machine Learning Technique

    Sammy Kiprop, Charity Wamwea, Herbert Imboga, Joel Chelule

    Issue: Volume 12, Issue 5, September 2023
    Pages: 120-128
    Received: 26 September 2023
    Accepted: 12 October 2023
    Published: 28 October 2023
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    Abstract: The Kenyan government in partnership with other stakeholders involved in providing family planning services have put in place various strategies and policies to increase uptake of contraceptives. This results in an increase in contraceptive prevalence rate (CPR), reduction of both total fertility rate (TFR) and sexually transmitted infections (STIs... Show More
  • Research Article

    Modeling Optimal Income and Job Increase on Fishing in the Current Economic Scenario in Angola Until 2050

    Alcides Romualdo Neto Simbo

    Issue: Volume 12, Issue 5, September 2023
    Pages: 129-149
    Received: 17 September 2023
    Accepted: 16 October 2023
    Published: 30 October 2023
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    Abstract: In this paper, forecasts were made and two-stage deterministic optimization models were designed to maximize annual fish sales revenues and increase the number of jobs on fishing in Angola in the current scenario. Starting from historical data from 2016 to 2022, taking their means and standard deviations, normal distributions were generated up to 2... Show More