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- Title
Improved Confidence Interval and Hypothesis Testing for the Ratio of the Coefficients of Variation of Two Uncorrelated Populations.
- Authors
Bahrampour, Abbas; Avazzadeh, Zeynab; Mahmoudi, Mohammad Reza; Lopes, António M.
- Abstract
One of the most accessible and useful statistical tools for comparing independent populations in different research areas is the coefficient of variation (CV). In this study, first, the asymptotic distribution of the ratio of CV of two uncorrelated populations is investigated. Then, the outputs are used to create a confidence interval and to establish a test of hypothesis about the CV ratio of the populations. The proposed approach is compared with an alternative method, showing its superiority and effectiveness.
- Subjects
CONFIDENCE intervals; ASYMPTOTIC distribution; HYPOTHESIS; DISTRIBUTION (Probability theory)
- Publication
Mathematics (2227-7390), 2022, Vol 10, Issue 19, p3495
- ISSN
2227-7390
- Publication type
Article
- DOI
10.3390/math10193495