Approximate method for bivariate stratification

Other Title(s)

طريقة تقريبية للطبقية الثنائية

Dissertant

al-Ulaymat, Adil Rizq Alya Awwad

Thesis advisor

al-Kassab, Muwaffaq M.

Comitee Members

al-Umari, Amir Ibrahim F.
al-Rawi, Ziyad Rashad A.
Hulw, Hisham M.

University

Al albayt University

Faculty

Faculty of Sciences

Department

Department of Mathematics

University Country

Jordan

Degree

Master

Degree Date

2011

English Abstract

Many approximate stratification methods have been proposed.

Researchers constructed strata based on certain rules, which do not necessarily reflect the aims for stratification problem. In this thesis, we suggest a new approximate method for obtaining the minimum variance of the stratified sample mean ysl under bivariate stratification, namely cum f «m+i.

We assume that there is a bivariate linear relationship between the study variable Y and the two stratifying variables X and Z. We also present a comparison between the suggested method and other bivariate stratification methods using some probability distributions for the two stratifying variables X and Z.

Main Subjects

Mathematics

Topics

• Approximation theory
• Polynomials
• Probabilities

No. of Pages

102

Table of Contents

• APA
• MLA
• AMA

Language

English

Data Type

Arab Theses

Record ID

BIM-321273