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Confidence intervals for a two-parameter exponential distribution: one- and two-sample problems. (English) Zbl 1387.62037

Summary: The problems of interval estimating the mean, quantiles, and survival probability in a two-parameter exponential distribution are addressed. Distribution function of a pivotal quantity whose percentiles can be used to construct confidence limits for the mean and quantiles is derived. A simple approximate method of finding confidence intervals for the difference between two means and for the difference between two location parameters is also proposed. Monte Carlo evaluation studies indicate that the approximate confidence intervals are accurate even for small samples. The methods are illustrated using two examples.

MSC:

62F25 Parametric tolerance and confidence regions
62E10 Characterization and structure theory of statistical distributions
62N05 Reliability and life testing

Software:

SPLIDA
Full Text: DOI

References:

[1] Bain, L. J., and M. Engelhardt. 1991. Statistical analysis of reliability and life-testing models. 2nd ed. New York: Marcel Decker. · Zbl 0724.62096
[2] Balakrishnan, N., and A. P. Basu. 1995. The exponential distribution: Theory, methods and applications. Langhorne, PA: Gordon and Breach Science Publishers. · Zbl 0919.62002
[3] Engelhardt, M., and L. J. Bain. 1978. Tolerance limits and confidence limits on reliability for the two-parameter exponential distribution. Technometrics 20:37-9. · Zbl 0371.62140
[4] Grubbs, F. E. 1971. Approximate fiducial bounds on reliability for the two parameter negative exponential distribution. Technometrics 13:873-6. · Zbl 0228.62061
[5] Guenther, W. C., S. A. Patil, and V. R. R. Uppuluri. 1976. One-sided β content tolerance factors for the two-parameter exponential distribution. Technometrics 18:333-40. · Zbl 0342.62022
[6] Kharrati-Kopaei, M. 2015. A note on the simultaneous confidence intervals for the successive differences of exponential location parameters under heteroscedasticity. Statistical Methodology 22:1-7. · Zbl 1486.62221
[7] Kharrati-Kopaei, M., A. Malekzadeh, and S. M. Sadooghi-Alvandi. 2013. Simultaneous fiducial generalized confidence intervals for the successive differences of exponential location parameters under heteroscedasticity. Statistics & Probability Letters 83:1547-1552. · Zbl 1356.62043
[8] Krishnamoorthy, K., and T. Mathew. 2009. Statistical tolerance regions: Theory, applications and computation. Hoboken, NJ: Wiley. · Zbl 1291.60001
[9] Krishnamoorthy, K. 2016. Modified normal-based approximation to the percentiles of linear combination of independent random variables with applications. Communications in Statistics—Simulation and Computation 45:2428-44. · Zbl 1380.62049
[10] Krishnamoorthy, K., S. Mukherjee, and H. Guo. 2007. Inference on reliability in two-parameter exponential stress-strength model. Metrika 65:261-73. · Zbl 1433.62061
[11] Kumar, S., and H. I. Patel. 1971. A test for the comparison of two exponential distributions. Technometrics 13:183-9. · Zbl 0216.47603
[12] Lawless, J. F. 2003. Statistical models and methods for lifetime data. 2nd ed. New York: Wiley. · Zbl 1015.62093
[13] Li, J., W. Song, and J. Shi. 2015. Parametric bootstrap simultaneous confidence intervals for differences of means from several two-parameter exponential distributions. Statistics & Probability Letters 106:39-45. · Zbl 1328.62183
[14] Li, J., W. Song, and J. Shi. 2015. Parametric bootstrap simultaneous confidence intervals for differences of means from several two-parameter exponential distributions. Statistics & Probability Letters 106:39-45. · Zbl 1328.62183
[15] Maurya, V., A. Goyal, and A. N. Gill. 2011. Multiple comparisons with more than one control for exponential location parameters under heteroscedasticity. Communications in Statistics—Simulation and Computation 40:621-44. · Zbl 1277.62071
[16] Meeker, W. Q., and L. Escobar. 1998. Statistical methods for reliability data. New York: John Wiley & Sons. · Zbl 0949.62086
[17] Roy, A., and T. Mathew. 2005. A Generalized confidence limit for the reliability function of a two-parameter exponential distribution. Journal of Statistical Planning and Inference 128:509-17. · Zbl 1095.62033
[18] Weerahandi, S. 1993. Generalized confidence intervals. Journal of the American Statistical Association 88:899-905. · Zbl 0785.62029
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