7 years

Research Area

Sampling Theory & Survey, Econometrics and Applied Statistics

Research Guidance

1. Two Ph.D. Scholars are successfully completed.
2. Two Ph.D. Scholars submitted their thesis.
3. One Research Scholar is pursuing. Over 20 students have earned their master's degrees with success.

International Publications

1. Sahoo, Nirupama and Jena, Saradaprasan (2024): Improved Product-Type Estimator for Estimating Population Mean Using Harmonic Mean; International Journal of Agricultural and Statistical Sciences, Vol.20, No. 1, pp. 195-201, ISSN: 0973-1903, e-ISSN: 0976-3392 [Index: WoS; Impact Factor: 1.814 ]
2. Sahoo, Nirupama (2024): A Logistic Regression Analysis for Problems Faced by the Farmers in Sambalpur, International Research Journal of Multidisciplinary Scope (IRJMS), Vol. 5, Issue 4, pp. 768-774, ISSN (O): 2582-631X [Index: Scopus; Impact Factor: 0.053 ]
3. Sahoo, Nirupama and Jhankar, Sananda Kumar (2024): A chain ratio-type exponential estimator for population mean in double sampling; Statistics in Transition new series, Vol. 25, No. 1, pp. 63-76, [Index: Scopus; Impact Factor: ]
4. Panda, K.B. and Sahoo, N. (2017): Estimation of Finite Population Mean Using Variable Transformation; Int. Jour. of Agri. Stat. Sci., Vol. 13, No. 1, pp. 141-144, ISSN: 0973-1903. [Index: Scopus; Impact Factor: 1.814 ]
5. Sahoo, N. and Bhoi, Doleswar (2021): An Analysis of Family Medical History with Chronic Health Condition and Death among Elderly Population in Odisha; Journal of Cardiovascular Disease Research, Vol. 12, Issue No.-01, pp. 679-687, ISSN: 0975-3583,0976-2833. [Index: Scopus; Impact Factor: 0.46 ]
6. Sahoo, N. and Jhankar, S.K. (2022): An Exponential Ratio-Type Estimator For Estimating Population Variance With its Efficiency; Int. Jour. of Agri. Stat. Sci., Vol.18, Supplement 1, pp. 1085-1089, ISSN: 0973-1903, e-ISSN: 0976-3392. [Index: Scopus; Impact Factor: 1.814 ]
7. Sahoo, Nirupama and Saradaprasan Jena (2024): Improved Ratio-Type Estimators for Estimating Population Mean Using Information on Size of the Sample, International Journal of Statistics and Reliability Engineering, Vol. 11, Issue: 2, pp. 138-144, ISSN (P): 2350-0174, ISSN (O): 2456-2378. [Index: UGC; Impact Factor: ]
8. Sahoo, Nirupama and Pradhan, Atula Kumar (2024): A Comparison Study of Odisha’s Rainfall Distribution, International Journal of Multidisciplinary Educational Research, Vol. 13, Issue:8(3), pp. 101-108, ISSN: 2277-7881. [Index: UGC; Impact Factor: 9.014 ]
9. Sahoo, Nirupama and Dash Suman (2024): A Difference Ratio-Regression Type Exponential Estimator of Population Mean in Post-Stratification under Linear Transformation of Auxiliary Variable,; International Journal of Mathematics and Statistics, Vol. 25, pp. 13-20, ISSN: 0974-7117 (print), ISSN: 0973-8347 (online). [Index: UGC; Impact Factor: ]
10. Sahoo, N. and Jhankar, S.K. (2023): Enhancement of Exponential Ratio-Type and Product-Type Estimators in Two-Phase Sampling; Int. Jour. of Mathematics and Statistics, Vol. 24, Issue. 01, pp.51-60, ISSN: 0974-7117 (print), ISSN: 0973-8347 (online). [Index: UGC; Impact Factor: ]
11. Panda, K.B. and Sahoo, N. (2020): An Efficient Exponential Ratio-type Estimator in Post-Stratification using Variable Transformation; Int. Jour. of Mathematics and Statistics, Vol. 21, Issue. 1, pp. 68-74, ISSN: 0973-8347 (online). [Index: UGC; Impact Factor: ]
12. Panda, K.B. and Sahoo, N. (2018): An Efficient Product-Type Estimator of Finite Population Mean; Int. Jour. for Research in Applied Science and Engineering Technology, Vol. 6, Issue. 2, pp. 933-936, ISSN: 2321-9653. [Index: UGC; Impact Factor: 7.429 ]
13. Panda, K.B. and Sahoo, N. (2017): An Efficient Product Estimator using Harmonic Mean; Int. Jour. of Maths. Trends and Technology, Vol. 50, No. 5, pp. 276-278, ISSN: 2231-5373. [Index: UGC; Impact Factor: 2.45 ]
14. Panda, K.B. and Sahoo, N.(2015): An Efficient Product-type Exponential Estimator of Finite Population mean Using Variable Transformation; Int. Jour. of Statistical Sciences, Vol. 15, pp. 13-19, ISSN: 1683-5603. [Index: UGC; Impact Factor: ]
15. Panda, K.B. and Sahoo, N.(2016): Improved Ratio-type Exponential Estimator for Estimating Population Variance Using Auxiliary Information; Int. jour. of Stat. and Systems, Vol. 11, No. 2, pp. 187-195, ISSN: 0973-2675. [Index: Other; Impact Factor: ]
16. Jhankar, S.K., Sahoo, N. and Dash, S.(2023): A Simulation Study of Estimation of Finite Population Mean Using a Single Auxiliary Information in Double Sampling; International Journal of Mathematics and Computation, Vol.34, pp. 01-08, ISSN 0974-570X (Online), ISSN 0974-5718 (Print). [Index: Other; Impact Factor: 0.262 ]
17. Panda, K.B. and Sahoo, N.(May-June, 2015): Systems of Exponential Ratio-based and Exponential Product-based Estimators with their Efficiency, IOSR Jour. Mathematics; Vol. 11, Issue.3, Ver. 1, pp. 73-77, e-ISSN:2278-5728, p-ISSN: 2319-765X. [Index: Other; Impact Factor: 3.97 ]
18. Sahoo, N. and Panda, K.B. (Dec., 2015): Study On Product Estimation; Int. Jour. Of Multidisciplinary Research Review, Vol. 1, No. 10, pp. 165-167, ISSN : 2395-1877. [Index: Other; Impact Factor: 2.262 ]
19. Panda, K.B. and Sahoo, N. (Nov., 2016): Estimation of Finite Population Variance Using Auxiliary Information; Int. Jour. of Maths. Trends and Technology, Vol. 39, No. 3, pp. 227-231, ISSN: 2231-5373. [Index: Other; Impact Factor: 2.45 ]
20. Panda, K.B. and Sahoo, N. (Oct.-Dec., 2016): An efficient Exponential Ratio-type Estimator for Estimating Population Variance; Bull. Maths and Stat. Research, Vol. 4, Issue. 4, pp. 51-56, ISSN: 2348-0580. [Index: Other; Impact Factor: 4.495 ]
21. Sahoo, Nirupama and Jena, Saradaprasan (2023): Marketing Strategy using Markovian Model on Long Term Steady State Market Share; Journal of Statistics, Optimization and Data Science, Vol. 1, No. 1, pp:01-11, ISSN:2583-9462. [Index: Other; Impact Factor: ]
22. Sahoo, N. (2020): An Improved Class of Ratio-Type Estimators of the Population Variance in Simple Random Sampling Scheme; International Journal of Research and Analytical Reviews (IJRAR), Vol. 7, Issue. 4, pp. 94-101, E-ISSN 2348-1269, P- ISSN 2349-5138. [Index: Other; Impact Factor: 7.17 ]
23. Sahoo, N. and Dash, S. (2020): An Efficient Product-Type Exponential Estimator in Post-Stratification; Bull. Maths and Stat. Research, Vol. 8, Issue. 2, pp. 01-05, ISSN: 2348-0580. [Index: Other; Impact Factor: 4.495 ]
24. Sahoo, N. and Dash, S. (2021): Sequence of Exponential Ratio-type and Exponential Product-type estimators in Post-Stratification with their Efficiency; Int. jour. of Stat. and Systems, Vol. 6, No. 1, pp. 67-76, ISSN: 0973-2675. [Index: Other; Impact Factor: ]
25. Sahoo, N. and Jhankar, S. K. (2022): A Chain Product-Type Exponential Estimator for Population Mean in Double Sampling; Bull. Maths and Stat. Research, Vol. 10, Issue. 4, pp. 36-41, ISSN: 2348-0580. [Index: Other; Impact Factor: 4.495 ]

National Publications

1. Sahoo, Nirupama and Jhankar, Sananda Kumar (2024): Improved Ratio-type Exponential Estimator for Estimating Population Mean in Ranked Set Sampling, Journal of the Indian Society of Agricultural Statistics, Vol. 78(2), pp. 135-141, [Index: Other; Impact Factor: NA ]

International Conferences

1. Recent Advances of Probability and Statistics in Interdisciplinary Research (RAPSIR-2024) organized by Department of Statistics, University of Allahabad, Prayagraj, India in conjuction with Indian Society for Probability and Statistics (06-08 February 2024) [Index: ]
2. An Invited Talk in International Conference On Knowledge Discoveries On Statistical Innovations & Recent Advances in Optimization organized by Department of Statistics and Population Research Centre, Andhra University, Visakhapatnam (ICON-KSRAO) held on 29th & 30th December-2022. [Index: ]
3. A one day International Seminar on “Applications if Statistical Computing & Data Analytics-2022” organized jointly by P.G. Department of Statistics, Sambalpur University, Burla on 29th June 2022. [Index: ]
4. International Conference On “Statistics and Data Science: Theory and Practice for Progress and Prosperity ” organized jointly by P.G. Department of Statistics, University College of Science, Osmania University, Hyderabad and Indian Society for Probability & Statistics (ISPS) during 11-13 March, 2022. [Index: ]
5. International Conference On “Recent Advances in Statistics And Data Science For Sustainable Development” organized by P.G. Department of Statistics, Utkal University, Vanivihar, Bhubaneswar, Odisha in conjuction with Indian Society for Probability & Statistics (ISPS) during 21-23rd December, 2019. [Index: ]

National Conferences

1. A Two -Day National Seminar on Data Driven Predictive Analytics & Modelling (DDPAM-2024) organized by Department of Statistics, Sambalpur University, Burla on 19-20 March 2024 [Index: ]
2. National Seminar on Applications of Statistics & Artificial Intelligence in Emerging Scenarios-2023 (ASAIES-2023) organized by P.G. Department of Statistics, Sambalpur University, Burla on 3rd March 2023. [Index: ]
3. Odisha Research Conclave-2022 organized by Odisha State Higher Education Council (OSHEC) held on 14th -16th November 2022, Ravenshaw University, Cuttack, Odisha. [Index: ]
4. National Seminar on “ Statistics In Research: Trends & Applications” organized by P.G. Department of Statistics, Utkal University, Vani Vihar, Odisha in association with ORSI, Bhubaneswar Chapter; on 15th April, 2018. [Index: ]
5. National Seminar on “Operational Competitiveness in Service & Manufacturing Sector in 21st Century” on 24th February 2018 organized by Birla School of Management Technology, Birla Global University, Bhubaneswar, Odisha. [Index: ]
6. Utkal University Research Scholars’ Conclave-2016 (UURSC-2016), VaniVihar, held on 30th April, 2016, Bhubaneswar, Odisha. [Index: ]
7. 17th Annual Conference on “Statistics and Informatics for Smart Decisions in Managing Resources: Issues and Challenges” held at Birla Institute of Management Technology, Bhubaneswar, Odisha from 23rd to 25th February 2015. [Index: ]
8. National Seminar on “ Statistical Thinking in Data Science and Knowledge Discovery (STDSKD-2023)” organized by School of Statistics, Gangadhar Meher University, Amruta Vihar, Sambalpur-768004 on 26th June 2023. [Index: ]

Graduate Level:

1. Algebra
2. Descriptive Statistics
3. Calculus
4. Survey Sampling & Indian Official Statistics
5. Mathematical Analysis
6. Statistical Quality Control
7. Stochastic Process & Queuing Theory
8. Statistical Computing Using C & R Programming
9. Demography and Vital Statistics
10. Applied Statistics

Post Graduate Level:

1. Mathematical Analysis and Linear Algebra
2. Probability Theory
3. Statistical Inference
4. Survey Sampling Methods
5. Statistical Computing–II: C Programming
6. Demography & Vital Statistics
7. Stochastic Processes
8. Statistical Computing-III: R Programming
9. Econometrics
10. Official Statistics

Award, Honours and Achievements

1. Gold Medalist in PG

Books / Chapters Published

1. Sahoo, Nirupama, Auxiliary Information in Survey Sampling, AAYU Publication, Delhi, 2022-2023, ISBN: 978-93-91685-03-4.
2. Sahoo, Nirupama, Survey Sampling in Research, Pathak Publisher and Distributors, Sangam Vihar, New-Delhi, 2024-2025, ISBN: 978-93-91952-81-5.

Sponsored Projects

1. Minor Research Project on "AN EVALUATION OF THE SOCIO-ECONOMIC CONDITIONS OF FARMERS IN SAMBALPUR DISTRICT"

Seminar / Symposia / Workshops / Short term Course organized

1. National Seminar on “ Statistical Thinking in Data Science and Knowledge Discovery (STDSKD-2023)” organized by School of Statistics, Gangadhar Meher University, Amruta Vihar, Sambalpur-768004 on 26th June 2023.
2. National Webinar on “ Applications of Statistics and Machine Learning in Research Perspective” organized by School of Statistics, Gangadhar Meher University, Amruta Vihar, Sambalpur-768004 on 13th January 2023.
3. National Webinar on “Nutrition Assessment for Elderly” organized by Odisha Center for Geriatrics and Gerontology (OCGG), Gangadhar Meher University, Amruta Vihar, Sambalpur-768004 on 25th November 2022.
4. Extra-Mural Lecture on the eve of 102nd birth anniversary of Prof. C.R. Rao entitled “Statistics and its Importance in Big data” organized by School of Statistics, Gangadhar Meher University, Amruta Vihar, Sambalpur-768004 on 29th June 2021.
5. National Webinar Series on “Application of Statistics for National Planning” organized by School of Statistics, Gangadhar Meher University, Amruta Vihar, Sambalpur-768004 on 29th June 2021.
6. National Webinar Series on “Statistical Methodology for Working with Uncertainty” organized by School of Statistics, Gangadhar Meher University, Amruta Vihar, Sambalpur-768004 on 24th and 26th September 2020.

Members of Professional Bodies

1. Life Member, Indian Society for Probability and Statistics, New Delhi
2. Life Member, Society of Statistics, Computer and Applications, New Delhi
3. Life Member, Indian Society of Agricultural Statistics, PUSA, New Delhi

Extra Responsibility

1. IQAC Co-Ordinator
2. Co-PI, OCGG
3. Organized International Women’s Day
4. Member, U.G. Admission management team
5. Member, Task-specifying team
6. Member, CLC-cum conduct certificate