Department of Statistics

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Author: search.filters.author.LHR TP 9951Subject: search.filters.subject.FA20

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    Estimation of Population Mean Using Estimator Based on Auxiliary Variable in Simple Random Sampling
    (2020-04-01) Umme Habiba; CIIT/FA19-BST-007/LHR; Dr. Aamir Sanaullah; LHR TP 9951
    Survey sampling is a well-established methodology employed to choose a sample of individuals from a larger population. The primary objective of this study is to estimate the population mean efficiently, by employing a comprehensive approach. To achieve this, we proposed a generalized estimator up to first degree of approximation by use of one auxiliary variable under simple random sampling framework. By deriving expressions for both bias and mean square error (MSE) of the proposed generalized estimator, we are able to ascertain its effectiveness. Remarkably, our analysis reveals that the proposed generalized estimator outperforms. Furthermore, we obtained the minimum MSE of the proposed estimator, and empirical studies demonstrated that our estimator outperform than the existing estimator found in the literature in terms of efficiency. Finally it is shown that the proposed generalized estimator efficiently work.
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    Determinants of Child Mortality in Punjab, Pakistan
    (Library Information Services, COMSATS University Islamabad, Lahore Campus., 2020-04-01) Kashaf Zahra; CIIT/FA20-BST-006/LHR; Dr. Muhammad Noor-ul-Amin; LHR TP 9951
    This research project examines the key determinants of child mortality in Punjab, Pakistan, focusing on factors such as birth order, mother’s age at birth, birth interval, premature birth, and multiple births. These findings indicate that firstborn and higher-order children exhibit higher mortality rates, which are attributed to inexperienced parenting in the case of firstborns and the dispersion of resources among siblings for higher-order children. The study showed that children born to mothers aged between 20-34 years had the highest survival rates than children born to mothers who are teenagers or mothers above 34 years. This means that the families mothers give birth within the age interval 20-34 are more likely to have low mortality rates hence the need to encourage family planning. It was also observed that both premature and multiple births are associated with high mortality rates hence there is a need to enhance quality perinatal and neonatal services. It is recommended that the Ministry of Health focuses on streamlined health policies, enhanced awareness of parents, and improved supply of resources to decrease infant mortality and promote general child health in the area. Integrated approaches, awareness campaigns, and the improvement of education and health care as well as the establishment of favorable policies are indispensable to tackle the multifaceted problem of child mortality.