Sample Size Estimation in Unequal Probability Sampling

Authors

  • ประหยัด แสงงาม

Keywords:

sample size, unbiased estimator, variance, unequal probability sampling

Abstract

This paper derived a sample size in unequal probability sampling with replacement. The parameter to be estimated is the population total. The result showed that the sample size is an increasing function on population size, population mean, weight coefficients of variation of study variable and that of auxiliary variable and confidence level. The quadratic relationship between the sample size and weight coefficient of variation gives a graph to be concave up. However, the sample size is a decreasing function on the acceptance error and the weight coefficient of correlation. The relationship between the sample size and weight coefficient of correlation is the negative linear relationship.

Author Biography

ประหยัด แสงงาม

ภาควิชาสถิติ คณะวิทยาศาสตร์ มหาวิทยาลัยศิลปากร วิทยาเขตพระราชวังสนามจันทร์

References

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Published

2017-06-30

How to Cite

แสงงาม ป. (2017). Sample Size Estimation in Unequal Probability Sampling. Journal of Applied Statistics and Information Technology, 2(1), 36–44. Retrieved from https://ph02.tci-thaijo.org/index.php/asit-journal/article/view/164904