Using Normal Log Distribution in Building Life Table in Syria for Period (1998-2019)

Authors

  • Abdulhadi AL Rifai Tishreen University
  • Hala Mohammed Ntefeh Tishreen University

Abstract

An attempt was made to apply Cumulative death Function of (Normal Log Distribution) on surviving Syrian population data  during the observational years 2017.2018,2019,considering 2018 as the base year, for  the period  (1998-2019), the survival probabilities were calculated by using (Knapp Zeuner) method after using(Sprague coefficient table)to breakup five categories into one-age categories, the survival probabilities complement was taken to arrive at the actual death probabilities, we estimated the two parameters of  distribution by using (Non-Linear Least Square Method),and calculated Unconditional and Hazard, probabilities, with the help of (SPSS28) and (R 4.2.2)  program, The possibility of using  death functions was tested by(Colmogorv-smirnov)&(Anderson- Darling) Test, The results came with  appropriateness of distribution to the study data and possibility of using death functions of the distribution in estimating death  probabilities for studied period, Hazard  probability was used in building life table in Syria for the studied period, due to the least value of its mean square errors comparing with other functions.                           

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Published

2023-05-22

How to Cite

عبد الهادي الرفاعي, & هلا محمد نتيفة. (2023). Using Normal Log Distribution in Building Life Table in Syria for Period (1998-2019). Tishreen University Journal- Economic and Legal Sciences Series, 45(2), 185–203. Retrieved from https://journal.tishreen.edu.sy/index.php/econlaw/article/view/15136

Issue

Vol. 45 No. 2 (2023): Tishreen University Journal of Research and Scientific Studies - Economic and Legal Sciences

Section

Articles

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