Results 1 to 10 of about 531,541 (320)

Parametric or Non-parametric: Skewness to Test Normality for Mean Comparison

open access: yesInternational Journal of Assessment Tools in Education, 2020
Checking the normality assumption is necessary to decide whether a parametric or non-parametric test needs to be used. Different ways are suggested in literature to use for checking normality. Skewness and kurtosis values are one of them.
Fatih Orcan
doaj   +2 more sources

Predicted Systematic and Idiosyncratic Skewness: New Evidence from Pricing the Third Moment of Stock Return ‎Distribution [PDF]

open access: yesJournal of Asset Management and Financing, 2021
Lottery preferences cause investors’ tendency toward high skewed (third moment of return distribution) stocks. Such preferences differ based on various market conditions. In this study, using predicted systematic and idiosyncratic skewness ranks, pricing
Maryam Davallou, Amir Hossein Shamshiri
doaj   +1 more source

Detecting the skewness of data from the five-number summary and its application in meta-analysis [PDF]

open access: yesStatistical Methods in Medical Research, 2020
For clinical studies with continuous outcomes, when the data are potentially skewed, researchers may choose to report the whole or part of the five-number summary (the sample median, the first and third quartiles, and the minimum and maximum values ...
Jiandong Shi   +6 more
semanticscholar   +1 more source

On IoT-Friendly Skewness Monitoring for Skewness-Aware Online Edge Learning

open access: yesApplied Sciences, 2021
Machine learning techniques generally require or assume balanced datasets. Skewed data can make machine learning systems never function properly, no matter how carefully the parameter tuning is conducted.
Zheng Li, Jhon Galdames-Retamal
doaj   +1 more source

Transient response characteristics of linear systems subjected to non-Gaussian random excitation with a wide range of bandwidth

open access: yesNihon Kikai Gakkai ronbunshu, 2021
In the previous study, one of the authors investigated stationary response characteristics of linear systems subjected to non-Gaussian random excitation.
Hideto FUKUSHIMA, Takahiro TSUCHIDA
doaj   +1 more source

Reversing the Luminance Polarity of Control Faces: Why Are Some Negative Faces Harder to Recognize, but Easier to See?

open access: yesFrontiers in Psychology, 2021
Control stimuli are key for understanding the extent to which face processing relies on holistic processing, and affective evaluation versus the encoding of low-level image properties.
Abigail L. M. Webb
doaj   +1 more source

Downside Beta and Downside Gamma: In Search for a Better Capital Asset Pricing Model

open access: yesRisks, 2021
In the financial world, the importance of “downside risk” and “higher moments” has been emphasized, predominantly in developing countries such as Pakistan, for a substantial period.
Madiha Kazmi   +3 more
doaj   +1 more source

Option pricing on sesame price using jump diffusion models [PDF]

open access: yesInternational Journal of Research in Industrial Engineering, 2020
In this paper, we aim at developing a model for option pricing to reduce the risks associated with Ethiopian sesame price fluctuations. The White Humera Gondar Sesame Grade 3 (WHGS3) price, which is recorded from 5 November 2010 to 30 March 2018 at ...
T. Berhane   +3 more
doaj   +1 more source

Risk Management Effects of Insurance Purchase and Organization Participation: Which Is More Effective?

open access: yesAgriculture, 2023
Insurance purchase and organization participation in risk management is of great practical significance for stabilizing agricultural production and household income.
Yanyuan Zhang, Xintong Wu
doaj   +1 more source

Wake Width: Discussion of Several Methods How to Estimate It by Using Measured Experimental Data

open access: yesEnergies, 2021
Several methods of defining and estimating the width of a turbulent wake are presented and tested on the experimental data obtained in the wake past an asymmetric prismatic airfoil NACA 64(3)-618, which is often used as tip profile of the wind turbines ...
Daniel Duda   +2 more
doaj   +1 more source

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