Results 21 to 30 of about 355,803 (282)

Nonparametric Rank Tests for Independence in Opinion Surveys

open access: yesAustrian Journal of Statistics, 2016
Nonparametric rank tests for independence between two characteristics are commonly used in many social opinion surveys. When both characteristics are ordinal in nature, tests based on rank correlations such as those due to Spearman and Kendall are often ...
Philip L.H. Yu, K.F. Lam, Mayer Alvo
doaj   +1 more source

Sign, Wilcoxon and Mann-Whitney Tests for Functional Data: An Approach Based on Random Projections

open access: yesMathematics, 2020
Sign, Wilcoxon and Mann-Whitney tests are nonparametric methods in one or two-sample problems. The nonparametric methods are alternatives used for testing hypothesis when the standard methods based on the Gaussianity assumption are not suitable to be ...
Rafael Meléndez   +2 more
doaj   +1 more source

Trend Analysis of Temperature, Precipitation, and Relative Humidity Changes in Iran [PDF]

open access: yesعلوم و مهندسی آبیاری, 2019
Introduction In the pursuit of detecting the trend and the shift in trend in hydro-meteorological variables, various statistical methods have been developed and used over the years.
Anahita Eblaghian   +3 more
doaj   +1 more source

Chicken Meat Consumption Habits of University Students: Case of Siirt University, Turkey

open access: yesTürkiye Tarımsal Araştırmalar Dergisi, 2020
In this study, it was aimed to determine the chicken meat consumption habits of students studying at Siirt University and the factors affecting these habits. The study material consists of data obtained by face to face survey method with a total of 217
Muhammet Ali KARA   +2 more
doaj   +1 more source

Nonparametric Clustering of Mixed Data Using Modified Chi-Squared Tests

open access: yesEntropy, 2022
We propose a non-parametric method to cluster mixed data containing both continuous and discrete random variables. The product space of the continuous and discrete sample space is transformed into a new product space based on adaptive quantization on the
Yawen Xu, Xin Gao, Xiaogang Wang
doaj   +1 more source

Methods for nonparametric statistics in scientific research. Overview. Part 2

open access: yesТеория и практика переработки мяса, 2022
The use of nonparametric methods in scientific research provides a number of advantages. The most important of these advantages are versatility and a wide range of such methods.
M. A. Nikitina, I. M. Chernukha
doaj   +1 more source

Selected Statistical Tests for Median and Their Properties

open access: yesActa Universitatis Lodziensis. Folia Oeconomica, 2017
In the paper, a selection of statistical tests for median are presented. In particular, parametric and nonparametric significance tests are considered.
Dorota Pekasiewicz, Agata Szczukocka
doaj   +1 more source

Differentially Private Nonparametric Hypothesis Testing

open access: yes, 2019
Hypothesis tests are a crucial statistical tool for data mining and are the workhorse of scientific research in many fields. Here we study differentially private tests of independence between a categorical and a continuous variable.
Bray, Andrew   +4 more
core   +1 more source

Smoothed nonparametric two-sample tests

open access: yes, 2017
We propose new smoothed median and the Wilcoxon's rank sum test. As is pointed out by Maesono et al.(2016), some nonparametric discrete tests have a problem with their significance probability. Because of this problem, the selection of the median and the
Maesono, Yoshihiko, Moriyama, Taku
core   +1 more source

Conditional stochastic dominance tests in dynamic settings [PDF]

open access: yes, 2014
This paper proposes nonparametric consistent tests of conditional stochastic dominance of arbitrary order in a dynamic setting. The novelty of these tests lies in the nonparametric manner of incorporating the information set.
Anderson   +30 more
core   +2 more sources

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