1. A new class of ratio-type estimators for improving mean estimation of nonsensitive and sensitive variables by using supplementary information. Issue 9 (21st October 2019) Authors: Shahzad, Usman; Perri, Pier Francesco; Hanif, Muhammad Journal: Communications in statistics Issue: Volume 48:Issue 9(2019) Page Start: 2566 Record Type: Journal Article View Content: Available online (eLD content is only available in our Reading Rooms) ↗
2. A new estimator of mean under ranked set sampling alongside the sensitivity issue. Issue 8 (30th November 2018) Authors: Shahzad, Usman; Hanif, Muhammad; Koyuncu, Nursel; Garcia Luengo, Amelia Victoria Journal: Journal of statistics & management systems Issue: Volume 21:Issue 8(2018) Page Start: 1553 Record Type: Journal Article View Content: Available online (eLD content is only available in our Reading Rooms) ↗
3. An exponential family of median based estimators for mean estimation with simple random sampling scheme. Issue 20 (8th September 2021) Authors: Shahzad, Usman; Al-Noor, Nadia H.; Hanif, Muhammad; Sajjad, Irsa Journal: Communications in statistics Issue: Volume 50:Issue 20(2021) Page Start: 4890 Record Type: Journal Article View Content: Available online (eLD content is only available in our Reading Rooms) ↗
4. Calibration Approach for Variance Estimation of Small Domain. (28th August 2022) Authors: Ashutosh, Ashutosh; Shahzad, Usman; Ahmad, Ishfaq; Ahmad Raza, Muhammad; Benedict, Troon J. Other Names: Mehmood Tahir Academic Editor. Journal: Mathematical problems in engineering Issue: Volume 2022(2022) Page Start: Record Type: Journal Article View Content: Available online (eLD content is only available in our Reading Rooms) ↗
5. Estimation of coefficient of variation using linear moments and calibration approach for nonsensitive and sensitive variables. (6th April 2022) Authors: Shahzad, Usman; Ahmad, Ishfaq; Hanif, Muhammad; Al‐Noor, Nadia H. Journal: Concurrency and computation Issue: Volume 34:Number 18(2022) Page Start: n/a Record Type: Journal Article View Content: Available online (eLD content is only available in our Reading Rooms) ↗
6. Estimation of population variance using kernel matrix. Issue 3 (3rd April 2019) Authors: Hanif, Muhammad; Shahzad, Usman Journal: Journal of statistics & management systems Issue: Volume 22:Issue 3(2019) Page Start: 563 Record Type: Journal Article View Content: Available online (eLD content is only available in our Reading Rooms) ↗
7. Estimation of the population mean by successive use of an auxiliary variable in median ranked set sampling. Issue 3 (3rd July 2021) Authors: Shahzad, Usman; Ahmad, Ishfaq; Oral, Evrim; Hanif, Muhammad; Almanjahie, Ibrahim Mufrah Journal: Mathematical population studies Issue: Volume 28:Issue 3(2021) Page Start: 176 Record Type: Journal Article View Content: Available online (eLD content is only available in our Reading Rooms) ↗
8. Imputation based mean estimators in case of missing data utilizing robust regression and variance–covariance matrices. Issue 8 (3rd August 2022) Authors: Shahzad, Usman; Al-Noor, Nadia H.; Hanif, Muhammad; Sajjad, Irsa; Muhammad Anas, Malik Journal: Communications in statistics Issue: Volume 51:Issue 8(2022) Page Start: 4276 Record Type: Journal Article View Content: Available online (eLD content is only available in our Reading Rooms) ↗
9. Minimum Covariance Determinant-Based Quantile Robust Regression-Type Estimators for Mean Parameter. (21st July 2021) Authors: Shahzad, Usman; Al-Noor, Nadia H.; Afshan, Noureen; Alilah, David Anekeya; Hanif, Muhammad; Anas, Malik Muhammad Other Names: Maqsood Adnan Academic Editor. Journal: Mathematical problems in engineering Issue: Volume 2021(2021) Page Start: Record Type: Journal Article View Content: Available online (eLD content is only available in our Reading Rooms) ↗
10. On efficiency of cluster sampling on sampling on two occasions when there is non-response. Issue 1 (2nd January 2018) Authors: Garcia Luengo, Amelia Victoria; Shahzad, Usman; Koyuncu, Nursel; Hanif, Muhammad Journal: Journal of statistics & management systems Issue: Volume 21:Issue 1(2018) Page Start: 139 Record Type: Journal Article View Content: Available online (eLD content is only available in our Reading Rooms) ↗