UNIMODALITY OF DISTRIBUTION OF GENERALIZED ORDER STATISTICS
Year 2017,
Volume: 10 Issue: 2, 40 - 44, 31.07.2017
Fazli Aliev
Sevgi Yurt Oncel
Abstract
Unimodality of the distribution of Generalized Order Statistics (GOSs) has a substantial role in many parameter and condence interval problems of statistics, actuarial science and economics. Under some restrictions on model parameters and distributions a number of authors have shown unimodality of distribution of GOSs. In this article, we present some new results on unimodality of distribution of GOSs that extend and generalize recently obtained results. A counter example showing that the conditions of the main Theorem are minimal is also provided.
References
- Alam, K. (1972). Unimodality of the distribution of an order statistic. The Annals of Mathematical Statistics, 43, 2041-{2044.
- Aliev, F.A. (2003). A comment on `Unimodality of the distribution of record statistics'. Statistics and Probability Letters, 64, 39-40.
- Alimohammadi, M. and Alamatsaz, M. H. (2011). Some new results on unimodality of generalized order statistics and their spacings. Statistics and Probability Letters, 81(11), 1677-1682.
- An, M.Y. (1998). Logconcavity versus logconvexity: a complete characterization. Journal of Economic Theory, 80, 350-369
- Basak, P. and Basak, I. (2002). Unimodality of the distribution of record statistics. Statistics and Probability Letters, 56, 395-398.
- Chen, H., Xie, H. and Hu, T. (2009). Log-concavity of generalized order statistics. Statistics and Probability Letters, 79, 396-{399.
- Cramer, E. and Kamps, U. (2003). Marginal distributions of sequential and generalized order statistics. Metrika, 58, 293-310.
- Cramer, E. (2004). Logconcavity and unimodality of progressively censored order statistics. Statistics and Probability Letters, 68, 83-90.
- Cramer, E., Kamps, U. and Rychlik, T. (2004). Unimodality of uniform generalized order statistics, with applications to mean bounds. Annals of the Institute of Statistical Mathematics, 56, 183-192.
- Dharmadhikari, S. and Joag-Dev, K. (1988). Unimodality, Convexity, and Applications. Academic Press, Boston.
- Huang, J.S. and Ghosh, M. (1982). A note on strong unimodality of order statistics. Journal of the American Statistical Association, 77, 929-930.
- Kamps, U. (1995). A concept of generalized order statistics. Journal of Statistical Planning and Inference, 48, 1-23.
- Kamps, U. and Cramer, E. (2001). On distributions of generalized order statistics. Statistics, 35, 269-280.
Year 2017,
Volume: 10 Issue: 2, 40 - 44, 31.07.2017
Fazli Aliev
Sevgi Yurt Oncel
References
- Alam, K. (1972). Unimodality of the distribution of an order statistic. The Annals of Mathematical Statistics, 43, 2041-{2044.
- Aliev, F.A. (2003). A comment on `Unimodality of the distribution of record statistics'. Statistics and Probability Letters, 64, 39-40.
- Alimohammadi, M. and Alamatsaz, M. H. (2011). Some new results on unimodality of generalized order statistics and their spacings. Statistics and Probability Letters, 81(11), 1677-1682.
- An, M.Y. (1998). Logconcavity versus logconvexity: a complete characterization. Journal of Economic Theory, 80, 350-369
- Basak, P. and Basak, I. (2002). Unimodality of the distribution of record statistics. Statistics and Probability Letters, 56, 395-398.
- Chen, H., Xie, H. and Hu, T. (2009). Log-concavity of generalized order statistics. Statistics and Probability Letters, 79, 396-{399.
- Cramer, E. and Kamps, U. (2003). Marginal distributions of sequential and generalized order statistics. Metrika, 58, 293-310.
- Cramer, E. (2004). Logconcavity and unimodality of progressively censored order statistics. Statistics and Probability Letters, 68, 83-90.
- Cramer, E., Kamps, U. and Rychlik, T. (2004). Unimodality of uniform generalized order statistics, with applications to mean bounds. Annals of the Institute of Statistical Mathematics, 56, 183-192.
- Dharmadhikari, S. and Joag-Dev, K. (1988). Unimodality, Convexity, and Applications. Academic Press, Boston.
- Huang, J.S. and Ghosh, M. (1982). A note on strong unimodality of order statistics. Journal of the American Statistical Association, 77, 929-930.
- Kamps, U. (1995). A concept of generalized order statistics. Journal of Statistical Planning and Inference, 48, 1-23.
- Kamps, U. and Cramer, E. (2001). On distributions of generalized order statistics. Statistics, 35, 269-280.