Published

2025-07-01

Efficient Estimation of Population Mean of a Sensitive Variable Under ORRT Models Using Two-Phase Sampling

Estimación eficiente de la media poblacional de una variable sensible según modelos ORRT utilizando un muestreo de dos fases

DOI:

https://doi.org/10.15446/rce.v48n2.113534

Keywords:

Study variable, Auxiliary variable(s), Non-response, Measurement error, Mean squared error (MSE), Percent relative efficiency, Optional Randomized Response Technique (ORRT). (en)
Variable de estudio, Variable(s) auxiliar(es), Falta de respuesta, Error de medición, Error cuadrático medio (EMC), Porcentaje de eficiencia relativa, Técnica de respuesta aleatoria opcional (ORRT). (es)

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Authors

  • Sunil Kumar University of Jammu
  • Chanda Rani University of Jammu https://orcid.org/0009-0007-8043-5168
  • Sanam Preet Kour University of Jammu
  • Housila P Singh Vikram University
  • Rakesh Chib University of Jammu

During human survey, participants are asked highly personal questions about a sensitive variable. This paper focus on estimation of population mean of sensitive study variable in the existence of non-response and measurement error under Optional Randomized Response Technique model using two-phase sampling. The bias and  mean squared error of the proposed and considered family of estimators have been derived up to first order of approximation. Further, the properties of the proposed estimator have been discussed, and efficiency conditions have been derived. To demonstrate the theoretical findings, simulation study is conducted under various conditions using data set from hypothetical population and it is clear that our proposed family of estimator is always better than the other considered family of estimators.

Durante una encuesta a personas, se les hacen preguntas muy personales a los participantes sobre una variable sensible. Este artículo se centra en la estimación de la media poblacional de la variable sensible del estudio en la existencia de falta de respuesta y error de medición bajo el modelo de técnica de respuesta aleatoria opcional utilizando un muestreo de dos fases. El sesgo y el error cuadrático medio de la familia de estimadores propuesta y considerada se han derivado hasta el primer orden de aproximación. Además, se han discutido las propiedades del estimador propuesto y se han derivado las condiciones de eficiencia. Para demostrar los hallazgos teóricos, se lleva a cabo un estudio de simulación en varias condiciones utilizando un conjunto de datos de una población hipotética y está claro que nuestra familia de estimadores propuesta es siempre mejor que la otra familia de estimadores considerada.

References

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How to Cite

APA

Kumar, S., Rani, C., Kour, S. P., Singh, H. P. & Chib, R. (2025). Efficient Estimation of Population Mean of a Sensitive Variable Under ORRT Models Using Two-Phase Sampling. Revista Colombiana de Estadística, 48(2), 49–66. https://doi.org/10.15446/rce.v48n2.113534

ACM

[1]
Kumar, S., Rani, C., Kour, S.P., Singh, H.P. and Chib, R. 2025. Efficient Estimation of Population Mean of a Sensitive Variable Under ORRT Models Using Two-Phase Sampling. Revista Colombiana de Estadística. 48, 2 (Jul. 2025), 49–66. DOI:https://doi.org/10.15446/rce.v48n2.113534.

ACS

(1)
Kumar, S.; Rani, C.; Kour, S. P.; Singh, H. P.; Chib, R. Efficient Estimation of Population Mean of a Sensitive Variable Under ORRT Models Using Two-Phase Sampling. Rev. colomb. estad. 2025, 48, 49-66.

ABNT

KUMAR, S.; RANI, C.; KOUR, S. P.; SINGH, H. P.; CHIB, R. Efficient Estimation of Population Mean of a Sensitive Variable Under ORRT Models Using Two-Phase Sampling. Revista Colombiana de Estadística, [S. l.], v. 48, n. 2, p. 49–66, 2025. DOI: 10.15446/rce.v48n2.113534. Disponível em: https://revistas.unal.edu.co/index.php/estad/article/view/113534. Acesso em: 15 nov. 2025.

Chicago

Kumar, Sunil, Chanda Rani, Sanam Preet Kour, Housila P Singh, and Rakesh Chib. 2025. “Efficient Estimation of Population Mean of a Sensitive Variable Under ORRT Models Using Two-Phase Sampling”. Revista Colombiana De Estadística 48 (2):49-66. https://doi.org/10.15446/rce.v48n2.113534.

Harvard

Kumar, S., Rani, C., Kour, S. P., Singh, H. P. and Chib, R. (2025) “Efficient Estimation of Population Mean of a Sensitive Variable Under ORRT Models Using Two-Phase Sampling”, Revista Colombiana de Estadística, 48(2), pp. 49–66. doi: 10.15446/rce.v48n2.113534.

IEEE

[1]
S. Kumar, C. Rani, S. P. Kour, H. P. Singh, and R. Chib, “Efficient Estimation of Population Mean of a Sensitive Variable Under ORRT Models Using Two-Phase Sampling”, Rev. colomb. estad., vol. 48, no. 2, pp. 49–66, Jul. 2025.

MLA

Kumar, S., C. Rani, S. P. Kour, H. P. Singh, and R. Chib. “Efficient Estimation of Population Mean of a Sensitive Variable Under ORRT Models Using Two-Phase Sampling”. Revista Colombiana de Estadística, vol. 48, no. 2, July 2025, pp. 49-66, doi:10.15446/rce.v48n2.113534.

Turabian

Kumar, Sunil, Chanda Rani, Sanam Preet Kour, Housila P Singh, and Rakesh Chib. “Efficient Estimation of Population Mean of a Sensitive Variable Under ORRT Models Using Two-Phase Sampling”. Revista Colombiana de Estadística 48, no. 2 (July 8, 2025): 49–66. Accessed November 15, 2025. https://revistas.unal.edu.co/index.php/estad/article/view/113534.

Vancouver

1.
Kumar S, Rani C, Kour SP, Singh HP, Chib R. Efficient Estimation of Population Mean of a Sensitive Variable Under ORRT Models Using Two-Phase Sampling. Rev. colomb. estad. [Internet]. 2025 Jul. 8 [cited 2025 Nov. 15];48(2):49-66. Available from: https://revistas.unal.edu.co/index.php/estad/article/view/113534

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