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Properties of Skew t-Normal Distribution and Modeling of Pollution Data of Shadegan Wetland
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Ameneh Kheradmandi *   , Nahid Sanjari Fasipour |
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Abstract: (25376 Views) |
| Gomez et al. (2007) introduced the skew t-normal distribution, showing that it is a good alternative to model heavy tailed data with strong symmetrical nature, specially because it has a larger range of skewness than the skew-normal distribution. Gomez et al. (2007) and Lin et al. (2009) described some properties of this distribution. In this paper, we consider some further properties of skew student-t-normal distribution. Also, we present four theorems for constructing of this distribution. Next we illustrate a numerical example to model the Vanadium pollution data in the Shadegan Wetland by using skew student-t-normal distribution. |
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| Keywords: Skew normal distribution, Skew student-t-normal distribution, Skewness parameter, Vanadium pollution. |
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Full-Text [PDF 443 kb]
(4782 Downloads)
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Type of Study: Research |
Subject:
Statistical Inference
Received: 2011/07/4 | Accepted: 2013/08/13 | Published: 2020/02/18
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