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- W4365816470 abstract "Purpose In this paper, a mixture of exponential and Rayleigh distributions in the proportions α and 1 − α and all the parameters in the mixture distribution are estimated based on fuzzy data. Design/methodology/approach The methods such as maximum likelihood estimation (MLE) and method of moments (MOM) are applied for estimation. Fuzzy data of triangular fuzzy numbers and Gaussian fuzzy numbers for different sample sizes are considered to illustrate the resulting estimation and to compare these methods. In addition to this, the obtained results are compared with existing results for crisp data in the literature. Findings The application of fuzziness in the data will be very useful to obtain precise results in the presence of vagueness in data. Mean square errors (MSEs) of the resulting estimators are computed using crisp data and fuzzy data. On comparison, in terms of MSEs, it is observed that maximum likelihood estimators perform better than moment estimators. Originality/value Classical methods of obtaining estimators of unknown parameters fail to give realistic estimators since these methods assume the data collected to be crisp or exact. Normally, such case of precise data is not always feasible and realistic in practice. Most of them will be incomplete and sometimes expressed in linguistic variables. Such data can be handled by generalizing the classical inference methods using fuzzy set theory." @default.
- W4365816470 created "2023-04-16" @default.
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- W4365816470 date "2023-04-17" @default.
- W4365816470 modified "2023-10-14" @default.
- W4365816470 title "Some inferences on a mixture of exponential and Rayleigh distributions based on fuzzy data" @default.
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- W4365816470 doi "https://doi.org/10.1108/ijqrm-10-2022-0300" @default.
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