Published Papers

1. Linear estimation with an incorrect dispersion matrix in linear models with a common linear part. Journal of the American Statistical Association (JASA), 78, 468-471 (1983).

2. A note on best linear unbiased estimation in the restricted general linear model. Mathematische Operationsforschung und Statistik, Series Statistics, 14, 3-6 (1983).

3. (With P. Bhimasankaram). Optimality of Blue's in a general linear model with an incorrect design matrix. Journal of Statistical Planning and Inference, 8, 315-329 (1983).

4. (With P. Bhimasankaram). On the robustness of the LRT with respect to specification errors in a linear model. Sankhya, Series A, 45, 212-225 (1983).

5. (With P. Bhimasankaram). On the robustness of the LRT in singular linear models. Sankhya, Series A, 45, 301-312 (1983).

6. On nonnegative quadratic unbiased estimability of variance components. The Annals of Statistics, 12, 1566-1599 (1984).

7. (With Sujit Kumar Mitra). Shorted operators and the identification problem-the real case. IEEE Transactions on Circuits and Systems, CAS-31, 299-300 (1984).

8. (With Madan L. Puri and Carl T. Russell). Convergence of generalized inverses with applications to asymptotic hypothesis testing. Sankhya, Series A, 46, 277-286 (1984).

9. (With C. R. Rao and B. K. Sinha). Admissible linear estimation in singular linear models. Communications in Statistics, 13, 3033-3045 (1984).

10. Admissible linear estimation in singular linear models with respect to a restricted parameter set. Communications in Statistics, 14, 491-498 (1985).

11. Inference in a general linear model with an incorrect dispersion matrix. In Linear Inference for Linear Models, Proceedings of a Conference held in Poznan, Poland (eds. T. Calinski and W. Klonecki), 200-210, Springer-Verlag (1985).

12. Hermitian and nonnegativity preserving subspaces. Linear Algebra and Its Applications (Special Issue on Statistics), 82, 225-235 (1986).

13. (With J. K. Baksalary). Linear sufficiency and completeness in an incorrectly specified general Gauss-Markov Model. Sankhya, Series A 48, 169-180 (1986).

14. On the characterization of nonnegatively estimable linear combinations of variance components. Statistics, 18, 227-236 (1987).

15. (With B. K. Sinha). Robust optimum invariant tests for fixed effects and variance components in balanced models. Journal of the American Statistical Association, 83, 133-135 (1988).

16. (With J. K. Baksalary). Admissible linear estimation in a general Gauss-Markov model with an incorrectly specified dispersion matrix. Journal of Multivariate Analysis, 27, 53-67 (1988).

17. (With B. K. Sinha). Optimum tests in unbalanced two-way models without interaction. The Annals of Statistics, 16, 1727-1740 (1988).

18. MANOVA in the multivariate components of variance model. Journal of Multivariate Analysis, 29, 30-38 (1989).

19. (With D. Bhaumik). On the minimax optimality of non-randomized block designs.Computational Statistics and Data Analysis, 8, 59-66 (1989).

20. (With D. Kaffes, M. B. Rao and K. Subramanyam). On the matrix convexity of the Moore-Penrose inverse and some applications. Linear and Multilinear Algebra, 24, 265-271 (1989).

21. Optimum tests in mixed linear models with two variance components. In Statistical Data Analysis and Inference, Proceedings of a Conference in honor of C. R. Rao held in Neuchatel, Switzerland (ed. Y. Dodge), pp. 381-388, North--Holland (1989).

22. (With D. Bhaumik). The model-robustness and optimality of randomized designs. Journal of Statistical Planning and Inference, 23, 371-379, (1989).

23. (With J. K. Baksalary). Rank invariance criterion and its application to the unified theory of least squares. Linear Algebra and Its Applications (Special Issue in Statistics), 127, 393-401 (1990).

24. (With B. K. Sinha). Towards an optimum test for non-additivity in Tukey's model. Journal of Multivariate Analysis, 36, 68-94 (1991).

25. (With B. K. Sinha). Exact and optimum tests in unbalanced split-plot designs under mixed and random models. Journal of the American Statistical Association, 86, 192-200 (1992).

26. (With B. K. Sinha and B. Sutradhar). Nonnegative estimation of random effects variance components in general balanced mixed models. In Nonparametric Statistics and Related Topics (ed. A. K. Md. E. Saleh), North-Holland, pp. 281-295 (1992).

27. (With B. K. Sinha and B. Sutradhar). Nonnegative estimation of variance components in unbalanced mixed linear models with two variance components. Journal of Multivariate Analysis, 42, 77-101 (1992).

28. (With B. K. Sinha and B. Sutradhar). Improved estimation of error variance in general balanced mixed models. Statistics and Decisions, 10, 227-238 (1992).

29. (With K. Nordstrom). Least squares and least absolute deviation procedures in approximately linear models. Statistics and Probability Letters, 16, 153-158 (1993).

30. (With P. Bhimasankaram). On ordering properties of generalized inverses of nonnegative definite matrices. Linear Algebra and Its Applications, 183, 131-146 (1993).

31. (With Leping Zhou). Combining independent tests in linear models. Journal of the American Statistical Association, 88, 650-655 (1993).

32. (With B. K. Sinha and Leping Zhou). Some statistical procedures for combining independent tests. Journal of the American Statistical Association, 88, 912-919 (1993).

33. (With R. J. Kelly). Improved estimators of variance components with smaller probability of negativity. Journal of the Royal Statistical Society, Series B, 55, 897-911 (1993).

34. (With Leping Zhou). Hypotheses tests for variance components in some multivariate mixed models. Journal of Statistical Planning and Inference, 37, 215-227 (1993).

35. (With Leping Zhou). A note on combining independent tests for a common mean. Journal of Combinatorics, Information and System Sciences, 18, 79-84 (1993).

36. (With B. K. Sinha). Nonnegative estimation of variance components in general mixed linear models: a survey. In Statistics and Probability: A Raghu Raj Bahadur Festschrift, Wiley Eastern Limited, pp. 411-444 (1993).

37. (With S. Kasala). An exact confidence region in multivariate calibration. The Annals of Statistics, 22, 94-105 (1994).

38. (With R. J. Kelly). Improved nonnegative estimation of variance components in some mixed models with unbalanced data. Technometrics, 36, 171-181 (1994).

39. (With Leping Zhou). Some tests for variance components using generalized $p$-values. Technometrics, 36, 394-402 (1994).

40. (With A. Niyogi and B. K. Sinha). Improved nonnegative estimation of variance components in balanced multivariate mixed models. Journal of Multivariate Analysis, 51, 83-101 (1994).

41. (With Andre' Khuri and D. G. Nel). A test to detect inadequacy of multivariate Satterthwaite approximation. Journal of Multivariate Analysis, 51, 201-209 (1994).

42. (With Leping Zhou). Combining independent tests in multivariate linear models. Journal of Multivariate Analysis, 51, 265-276 (1994).

43. (With D. Bhaumik). Minimaxity of randomized optimal designs with respect to a general optimality criterion. Sankhya, Series B, 51, 122-12(1995).

44. (With K. Nordstrom). Inequalities for sums of matrix quadratic forms. Linear Algebra and Its Applications (Special Issue in Statistics), 237, 429-447 (1996).

45. (With W. Zha). Conservative confidence regions in multivariate calibration. The Annals of Statistics, 24, 707-725 (1996).

46. (With S. Kasala). Exact confidence regions and tests in some linear functional relationships. Statistics and Probability Letters, 32, 325-328 (1997).

47. (With K. Nordstrom). Wishart and chisquare distributions associated with matrix quadratic forms. Journal of Multivariate Analysis, 61, 129-143 (1997).

48. (With W. Zha). Multiple use confidence regions in multivariate calibration. Journal of the American Statistical Association, 92,1141-1150 (1997).

49. (With K. Nordstrom). An inequality for a measure of deviation in linear models. The American Statistician, 51, 344-349 (1997).

50. (With K. Nordstrom). Inequalities for the probability content of a rotated ellipse and related stochastic domination results. The Annals of Applied Probability, 7, 1106-1117 (1997).

51. (With M. K. Sharma and K. Nordstrom). Tolerance regions and multiple use confidence regions in multivariate calibration. The Annals of Statistics, 26, 1989-2013 (1998).

52. (With W. Zha). Some single use confidence regions in a multivariate calibration problem. Applied Statistical Science III: A Festschrift in Honor of A. K. Md. E. Saleh, Nova Science Publications, New York, pp. 351-363 (1998).

53. (With K. Krishnamoorthy). Comparison of approximation methods for computing tolerance factors for multivariate normal populations. Technometrics, 41, 234-249 (1999).

54. (With K. Nordstrom). On the equivalence of meta-analysis using literature and using individual patient data. Biometrics, 55,1221-1223 (1999).

55. (With Yi-tzu Lee). Tolerance regions and calibration in linear regression. In Advances in Theoretical and Methodological Aspects of Statistics (N. Balakrishnan, Editor), Gordon and Breach Science Publishers, The Netherlands, pp. 407-426 (2000).

56. (With D. Bhaumik). Optimal data augmentation for the estimation of a linear parametric function in linear models. Sankhya, Series B, 63, 10-26 (2001).

57. (With K. Krishnamoorthy and P. M. Kulkarni). Multiple use one-sided hypothesis testing in univariate linear calibration. Journal of Statistical Planning and Inference, 93, 211-224 (2001).

58. (With B. K. Sinha). Optimal designs for binary data under logistic regression. Journal of Statistical Planning and Inference, 93, 295-308 (2001).

59. (With X. Gu). Some characterizations of symmetric two principal points. Journal of Statistical Planning and Inference, 98, 29-37 (2001).

60. (With M. K. Sharma). Joint confidence regions in some multivariate calibration problems. Journal of Statistical Planning and Inference. 100, 427-441 (2002).

61. (With M. K. Sharma). Multiple use confidence regions based on combined information in univariate calibration. Journal of Statistical Planning and Inference, 103, 151-172 (2002).

62. (With H. K. Iyer). Comments on Chiang (2001). Technometrics, 44, 284-285 (2002).

63. (With K. Krishnamoorthy). Assessing occupational exposure via the one-way random model with balanced data. Journal of Agricultural, Biological and Environmental Statistics 7, 440-457 (2002)

64. (With K. Krishnamoorthy). Statistical methods for establishing equivalency of a sampling device to the OSHA standard. American Industrial Hygiene Association Journal, 63, 567-571 (2002)

65. (With D. Benton and K. Krishnamoorthy). Inferences in multivariate-univariate calibration. Journal of the Royal Statistical Society, Series D (The Statistician), 52, 15-39 (2003).

66. (With R. McNally and H. Iyer). Tests for individual and population bioequivalence based on generalized p-values. Statistics in Medicine, 22, 31-53 (2003).

67. (With K. Krishnamoorthy). Inferences on the means of lognormal distributions using generalized p--values and generalized confidence intervals. Journal of Statistical Planning and Inference, 115, 103-121 (2003).

68. (With J. Gamage and S. Weerahandi). Generalized p-values and generalized confidence regions for the multivariate Behrens-Fisher problem. Journal of Multivariate Analysis, 88, 177-189 (2004).

69. (With K. Krishnamoorthy). Generalized confidence limits and one-sided tolerance limits in balanced and unbalanced one-way random models. Technometrics, 46, 44-52 (2004).

70. (With Yi-Tzu Lee). Tolerance regions in multivariate linear regression. Journal of Statistical Planning and Inference, 126, 253-271 (2004).

71. (With H. Iyer and J. M. Wang). Models and confidence intervals for true values in interlaboratory trials. Journal of the American Statistical Association, 99, 1060-1071 (2004).

72. (With A. Roy). A Generalized confidence limit for the reliability function of a two-parameter exponential distribution. Journal of Statistical Planning and Inference, 128, 509-517 (2005).

73. (With D. Webb). Generalized p-values and confidence intervals for variance components: applications to Army test and evaluation. Technometrics, 47, 312-322 (2005).

74. (With K. Krishnamoorthy and G. Ramachandran). Generalized p-values and confidence intervals: A novel approach for analyzing lognormally distributed exposure data. Journal of Occupational and Environmental Health, 3, 642-650 (2006).

75. (With K. Krishnamoorthy and G. Ramachandran) Upper limits for the exceedance probabilities in one-way random effects model. Annals of Occupational Hygiene, 51, 397-406 (2007).

76. (With K. Krishnamoorthy and F. Lu). A parametric bootstrap approach for ANOVA with unequal variances: fixed and random models. Computational Statistics and Data Analysis, 51, 5731-5742 (2007).

77. (With M. Fonseca, J. T. Mexia and R. Zmyslony). Tolerance intervals in a two-way nested model with mixed or random effects. Statistics, 41, 289-300 (2007).

78. (With K. M. Kurian and G. Sebastian). Generalized confidence intervals for process capability indices. Quality and Reliability Engineering International 23, 471-481 (2007).

79. (With Li Cao). The subject-by-formulation interaction in multivariate bioequivalence. Journal of Biopharmaceutical Statistics, 17, 367-379 (2007).

80. (With K. M. Kurian and G. Sebastian). Generalized confidence intervals for process capability indices in the one-way random model. Metrika 67, 83-92 (2007).

81. (With J. Gamage). Inference on mean sub-vectors of two multivariate nromal populations with unequal covariance matrices. Statistics and Probability Letters 78, 420-425 (2008).

82. (With K. Krishnamoorthy) Statistical methods for establishing equivalency of several sampling devices. Journal of Occupational and Environmental Hygiene 5, 15-21 (2008).

83. (With Yanping Wu). Pilot-pivotal trials for average bioequivalence. Journal of Statistical Plannning and Inference 138, 2106-2116 (2008).

84. (With I. Bebu). Comparing the means and variances of a bivariate log-normal distribution. Statistics in Medicine 14, 2684-2696 (2008).

85. (With K. Krishnamoorthy and S. Mukherjee). Normal based methods for a gamma distribution: prediction and tolerance intervals and stress-strength reliability. Technometrics 50, 69-78 (2008).

86. (With G. Paul). A p-value for testing the equivalence of the variances of a bivariate normal distribution. Journal of Statistical Planning and Inference 138, 3982-3992 (2008).

87. (With K. Krishnamoorthy). Statistical methods for establishing equivalency of several sampling devices. Journal of Occupational and Environmental Hygiene, 5 , 15-21 (2008).

88. (With Li Cao). A simple numerical approach towards improving the two one-sided test for average bioequivalence. Biometrical Journal 50, 205-211 (2008).

89. (With I. Bebu). Confidence intervals for limited moments and truncated moments in normal and lognormal models. Statistics and Probability Letters 79, 375-380 (2009).

90. (With K. Krishnamoorthy). Inference on the symmetric-range accuracy. Annals of Occupational Hygiene 53, 167-171 (2009).

91. (With K. Krishnamoorthy and A. Mallik). Model based imputation approach for data analysis in the presence of non-detects. Annals of Occupational Hygiene 53, 249-263 (2009).

92. (With L. Cao). Testing the equivalence of generalized variances in multivariate bioequivalence. Communications in Statistics - Theory and Methods 38, 2983-2991 (2009).

93. (With I. Bebu and F. Seillier-Moiseiwitch). Generalized confidence intervals for ratios of regression coefficients with applications to bioassays. Biometrical Journal 51, 1047-1058 (2009).

94. (With L. Zhang, H. Yang, K. Krishnamoorthy and I. Cho). Tolerance limits for a ratio of normal random variables. Journal of Biopharmaceutical Statistics 20, 172-184 (2010).

95. (With K. Nordstrom). Comparison of one-step and two-step meta-analysis models using individual patient data. Biometrical Journal 52, 271-287 (2010).

96. (With G. Sharma). Higher order inference for the consensus mean in inter-laboratory studies. Biometrical Journal 53, 128-136 (2011).

97. (With K. Krishnamoorthy and A. Mallick). Inference for the lognormal mean and quantiles based on samples with left and right type I censoring. Technometrics 53, 72-83 (2011).

98. (With G. Sharma). One-sided and two-sided tolerance intervals in general mixed and random effects models using small sample asymptotics. Journal of the American Statistical Association 107, 258-267 (2012).

99. (With J. Gamage and S. Weerahandi). A generalized prediction interval for BLUPs in mixed models. The Journal of Multivariate Analysis 120, 226-233 (2013).

100. (With D. Young). Fiducial-based tolerance intervals for some discrete distributions. Computational Statistics and Data Analysis 61, 38-49 (2013).

101. (With K. Krishnamoorthy). The symmetric-range accuracy under a one-way random model with balanced or unbalanced data. The Annals of Occupational Hygiene 57, 953-961 (2013).

102. (With K. Krishnamoorthy and X. Zu). Tests for an upper percentile of a lognormal distribution based on samples with multiple detection limits and sample size calculation. The Annals of Occupational Hygiene 57, 1200-1212 (2013).

103. (With S. Aryal, D. K. Bhaumik and R. D. Gibbons). An optimal test for variance components of multivariate mixed-effects linear models. Journal of Multivariate Analysis 124, 166-178 (2014).

104. (With K. Krishnamoorthy and X. Zu). Comparison of means of two lognormal distributions based on samples with multiple detection limits. Journal of Occupational and Environmental Hygiene 11, 538-546 (2014).

105. (With D. Young). Improved nonparametric tolerance intervals based on interpolated and extrapolated order statistics. Journal of Nonparametric Statistics 26, 415-432 (2014).

106. (With G. Sharma and I. Bebu). Combining multivariate bioassays: Accurate inference using small sample asymptotics. Scandinavian Journal of Statistics 41, 152-166 (2014).

107. (With Z. Zimmer and D. Park). Point-wise and simultaneous tolerance limits under logistic regression. Technometrics 56, 282-290 (2014).

108. (With M. Klein and B. K. Sinha). Noise multiplication for statistical disclosure control of extreme values in log-normal regression samples. Journal of Privacy and Confidentiality 6, 77-125 (2014).

109. (With X. Dong). Central tolerance regions and reference regions for multivariate normal populations. Journal of Multivariate Analysis 134, 50-60 (2015).

110. (With D. Young). Ratio edits based on statistical tolerance intervals. Journal of Official Statistics 31, 77-100 (2015).

111. (With M. Mbodj). Approximate ellipsoidal tolerance regions for multivariate normal populations. Statistics and Probability Letters 97, 41-45 (2015).

112. (With S. Saraf and A. Roy). Statistical validation of surrogate endpoints: Another look at the Prentice criterion and other criteria. Journal of Biopharmaceutical Statistics 25, 1234-1246 (2015).

113. (With I. Bebu and B. Agan). Inference for surrogate endpoint validation in the binary case. To appear in Journal of Biopharmaceutical Statistics 25, 1272-1284 (2015).

114. (With I. Bebu, G. Luta, P. A. Kennedy and B. Agan). Parametric cost-effectiveness inference with skewed data. Computational Statistics & Data Analysis 94, 210-220 (2016).

115. (With K. Krishnamoorthy and J. Peng). A simple method for assessing occupational exposure via the one-way random effects model. Journal of Occupational and Industrial Hygiene 13, 894-903 (2016).

116. (With S. Menon, I. Perevozskaya and S. Weerahandi). Improved prediction intervals in heteroscedastic mixed-effects models. Statistics and Probability Letters 114, 48-53 (2016).

117. (With Z. Zimmer and D. H. Park). Tolerance limits under normal mixtures: Application to the evaluation of nuclear power plant safety and to the assessment of circular error probable. Computational Statistics & Data Analysis 103, 304-315 (2016).

118. (With C. Hao and Y. Liang). Testing variance parameters in models with a Kronecker product covariance structure. Statistics and Probability Letters 118, 182-189 (2016).

119. (With I. Bebu, G. Luta, and B. K. Agan). Generalized confidence intervals and fiducial intervals for some epidemiological measures. International Journal of Environmental Research and Public Health 13, Issue 6 (2016) .

120. (With I. Bebu). Environmental data analysis based on the gamma distribution: compliance assessment using tolerance limits and exceedance fractions. Environmetrics 27, 370-376 (2016).

121. (With S. Zhai and Y. Huang). Comparison of drug dissolution profiles: A proposal based on tolerance limits. To appear in Statistics in Medicine (2016).

122. (With I. Bebu and J. M. Lachin). Probabilistic measures of cost-effectiveness. Statistics in Medicine (2016). SIM-2016.pdf