الملخص
Dash and Mishra [1] suggested an improved class of estimators without defining the optimum estimator. However, they gave the wrong Taylor’s series expression of their class of estimator and their minimum mean squared error expressions are also incorrect. Here we show that Ahmed et al.’s [2] class of chain estimators is more efficient than Dash and Mishra’s [1], with minimum mean squared error.
الكلمات المفتاحية
بيانات النشر
- المعرّف الرقمي
- 10.24200/squjs.vol19iss2pp97-100
- المجلة
- مجلة جامعة السلطان قابوس للعلوم, 19(2), 97
- الناشر
- جامعة السلطان قابوس
- وصول مفتوح
- وصول مفتوح ذهبي
- الترخيص
- CC BY 4.0
اقتبس هذه المقالة
APA 7
Ahmed, M. S. (2015). Some Improved Estimators in Double Sampling Using two Auxiliary Variables. Sultan Qaboos University Journal for Science, 19(2), 97. https://doi.org/10.24200/squjs.vol19iss2pp97-100
MLA 9
Ahmed, Mohammad Saleh. "Some Improved Estimators in Double Sampling Using two Auxiliary Variables." Sultan Qaboos University Journal for Science, vol. 19, no. 2, 2015, pp. 97. https://doi.org/10.24200/squjs.vol19iss2pp97-100.
شيكاغو (المؤلف–التاريخ)
Ahmed, Mohammad Saleh. 2015. "Some Improved Estimators in Double Sampling Using two Auxiliary Variables." Sultan Qaboos University Journal for Science 19 (2): 97. https://doi.org/10.24200/squjs.vol19iss2pp97-100.
هارفارد
Ahmed, M. S. (2015) 'Some Improved Estimators in Double Sampling Using two Auxiliary Variables', Sultan Qaboos University Journal for Science, 19(2), pp. 97. doi:10.24200/squjs.vol19iss2pp97-100.
فانكوفر
Ahmed MS. Some Improved Estimators in Double Sampling Using two Auxiliary Variables. Sultan Qaboos University Journal for Science. 2015;19(2):97. doi:10.24200/squjs.vol19iss2pp97-100
IEEE
M. S. Ahmed, "Some Improved Estimators in Double Sampling Using two Auxiliary Variables," Sultan Qaboos University Journal for Science, vol. 19, no. 2, pp. 97, 2015, doi: 10.24200/squjs.vol19iss2pp97-100.