American Journal of Theoretical and Applied Statistics

Volume 9, Issue 3, May 2020

  • Modelling Time to Mortality with Congestive Heart Failure: A Case Study in Wollo General and Referral Government Hospitals

    Habtamu Dessie, Yenefenta Wube, Belete Adelo, Eskeziaw Abebe

    Issue: Volume 9, Issue 3, May 2020
    Pages: 21-36
    Received: 7 October 2019
    Accepted: 16 April 2020
    Published: 28 April 2020
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    Abstract: Congestive heart failure is a complex clinical syndrome of functional or structural impairment in the heart. Nowadays heart failure is common and increasing in the world and researches on this area is limited. Therefore the aim of the present study was to analyze and quantify the impact of modelling heart failure survival allowing for covariates wi... Show More
  • Ethiopian Economic Features and Changing Persistence: A Time Series Analysis

    Tofik Mussa Reshid

    Issue: Volume 9, Issue 3, May 2020
    Pages: 37-46
    Received: 15 October 2019
    Accepted: 15 April 2020
    Published: 28 April 2020
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    Abstract: Ethiopia was one of the countries least developed and it is among the countries in the bottom in the rank of GDP’s that UN lists. However, nowadays Ethiopia is one of the fastest growing economies in the world. In Ethiopia much effort has been made to build the national economy. Ethiopia has made significant strides towards becoming a middle income... Show More
  • Assessment of Farmers Perception to Soil Fertility Management in Kalisha District, Hadiya Zone, Southern Ethiopia

    Girma Woldemichael, Abebech Endashaw, Abinet Tadesse, Berhanu Achamo

    Issue: Volume 9, Issue 3, May 2020
    Pages: 47-52
    Received: 5 December 2019
    Accepted: 20 April 2020
    Published: 14 May 2020
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    Abstract: Soil is one of the natural resource and under high pressure that is increasing from year to year, resulting in poor fertility. The objective of this study was to assess the attitudes of farmer’s perception to soil fertility management practices. In order to achieve these objectives, random sampling methods was used to select respondents in the stud... Show More
  • On the Application of Linear Discriminant Function to Evaluate Data on Diabetic Patients at the University of Port Harcourt Teaching Hospital, Rivers, Nigeria

    Nicholas Pindar Dibal, Christopher Akas Abraham

    Issue: Volume 9, Issue 3, May 2020
    Pages: 53-56
    Received: 16 April 2020
    Accepted: 3 May 2020
    Published: 18 May 2020
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    Abstract: Many real life events involves several interacting variables, hence multivariate statistical tool is necessary for appropriate analysis and interpretation. Discriminant analysis (DA) is one of the commonly used multivariate method in various fields of study including education, finance, environment, medicine etc., where complex data analysis and in... Show More
  • Ghana’s National Health Insurance Scheme: An Ordinal Probit Valuation of Willingness to Pay Higher Premiums for Improved Services

    Richard Puurbalanta, Mark Adjei, Vida Afosaa

    Issue: Volume 9, Issue 3, May 2020
    Pages: 57-62
    Received: 18 November 2019
    Accepted: 17 April 2020
    Published: 27 May 2020
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    Abstract: The importance of improved healthcare services under Ghana’s National Health Insurance Scheme (NHIS) is nationwide admitted. However, service improvement for insurance schemes comes with extra cost. To fill the funding gap, insurance schemes typically charge enhanced premiums. This requires clients’ approval and cooperation to implement. For this r... Show More
  • Examination of Covariance Structures for Experimental Design with Repeated Measure

    Abraham Okolo, Saidu Sauta Abdulkadir, Ikeme John Dike, Abubakar Adamu

    Issue: Volume 9, Issue 3, May 2020
    Pages: 63-73
    Received: 3 April 2020
    Accepted: 3 May 2020
    Published: 27 May 2020
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    Abstract: This research examine different covariance structures for experimental design with repeated measure data. Multiple responses taken sequentially from same experimental unit at different periods of time for quantitative data are referred as Repeated Measurement. Weight of 105 broilers in grams for six group obtained from jewel farm Gombe were used as... Show More
  • Impact of Treatment Parameter on Blood Flow in an Atherosclerotic Artery

    Kubugha Wilcox Bunonyo, Emeka Amos

    Issue: Volume 9, Issue 3, May 2020
    Pages: 74-79
    Received: 19 April 2020
    Accepted: 7 May 2020
    Published: 27 May 2020
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    Abstract: This research was carried out to investigate the impact of treatment parameter on blood flow in an atherosclerotic artery by formulating a momentum equation governing the flow in dimensional form which was scaled to dimensionless form using some important scaling parameters. The equation was solved analytical and obtained velocity profile, thereaft... Show More