کد مقاله | کد نشریه | سال انتشار | مقاله انگلیسی | نسخه تمام متن |
---|---|---|---|---|
1709670 | 1012860 | 2008 | 8 صفحه PDF | دانلود رایگان |
عنوان انگلیسی مقاله ISI
Approximately optimum stratification for ratio and regression methods of estimation
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موضوعات مرتبط
مهندسی و علوم پایه
سایر رشته های مهندسی
مکانیک محاسباتی
پیش نمایش صفحه اول مقاله
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چکیده انگلیسی
This work considers the problem of optimum stratification for two study variables Yj(j=1,2) when samples from different strata are collected by simple random sampling with a replacement scheme and the information on the auxiliary variable is used to estimate the population mean using the ratio and regression method of estimation. A cumulative cube root rule for determination of optimum strata boundaries for the ratio and regression method of estimation under compromise allocation has been proposed. A limiting expression for the trace of the variance–covariance matrix has also been suggested. The work concludes with a numerical illustration.
ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Applied Mathematics Letters - Volume 21, Issue 2, February 2008, Pages 200–207
Journal: Applied Mathematics Letters - Volume 21, Issue 2, February 2008, Pages 200–207
نویسندگان
Med Ram Verma,