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Determining an appropriate sample size is a critical element of study design, and the method used to determine it should be consistent with the planned analysis. When the planned analysis involves Bayes factor hypothesis testing, the sample…

统计方法学 · 统计学 2024-11-14 Samuel Pawel , Leonhard Held

We propose a hypothesis test that allows for many tested restrictions in a heteroskedastic linear regression model. The test compares the conventional F statistic to a critical value that corrects for many restrictions and conditional…

计量经济学 · 经济学 2023-01-24 Stanislav Anatolyev , Mikkel Sølvsten

Simulation offers a simple and flexible way to estimate the power of a clinical trial when analytic formulae are not available. The computational burden of using simulation has, however, restricted its application to only the simplest of…

统计方法学 · 统计学 2020-12-04 Duncan T. Wilson , Rebecca E. A. Walwyn , Richard Hooper , Julia Brown , Amanda J. Farrin

We consider a data-driven robust hypothesis test where the optimal test will minimize the worst-case performance regarding distributions that are close to the empirical distributions with respect to the Wasserstein distance. This leads to a…

统计理论 · 数学 2021-06-01 Liyan Xie , Rui Gao , Yao Xie

Models of physics beyond the Standard Model often contain a large number of parameters. These form a high-dimensional space that is computationally intractable to fully explore. Experimental constraints project onto a subspace of viable…

高能物理 - 理论 · 物理学 2022-01-05 Jacob Hollingsworth , Michael Ratz , Philip Tanedo , Daniel Whiteson

Estimation of the high-dimensional banded covariance matrix is widely used in multivariate statistical analysis. To ensure the validity of estimation, we aim to test the hypothesis that the covariance matrix is banded with a certain…

统计方法学 · 统计学 2022-04-26 Xiaoyi Wang , Gongjun Xu , Shurong Zheng

We present a Bayesian jackknife test for assessing the probability that a data set contains biased subsets, and, if so, which of the subsets are likely to be biased. The test can be used to assess the presence and likely source of…

天体物理仪器与方法 · 物理学 2022-12-07 Michael J. Wilensky , Fraser Kennedy , Philip Bull , Joshua S. Dillon , The HERA Collaboration

In this paper, we investigate score function-based tests to check the significance of an ultrahigh-dimensional sub-vector of the model coefficients when the nuisance parameter vector is also ultrahigh-dimensional in linear models. We first…

统计方法学 · 统计学 2024-11-12 Weichao Yang , Xu Guo , Lixing Zhu

A popular approach for testing if two univariate random variables are statistically independent consists of partitioning the sample space into bins, and evaluating a test statistic on the binned data. The partition size matters, and the…

统计方法学 · 统计学 2016-04-28 Ruth Heller , Yair Heller , Shachar Kaufman , Barak Brill , Malka Gorfine

We consider the problem of testing means from samples of two populations for which the labels are not defined with certainty. We show that this problem is connected to another one that is testing expected values of components of…

统计理论 · 数学 2012-05-18 Florent Autin , Christophe Pouet

A device-independent dimension test for a Bell experiment aims to estimate the underlying Hilbert space dimension that is required to produce given measurement statistical data without any other assumptions concerning the quantum apparatus.…

量子物理 · 物理学 2019-04-25 Zhaohui Wei , Jamie Sikora

In this paper we deal with the problem of testing for the equality of $k$ probability distributions defined on $(\mathcal{X},\mathcal{B})$, where $\mathcal{X}$ is a metric space and $\mathcal{B}$ is the corresponding Borel $\sigma$-field.…

This work presents novel and powerful tests for comparing non-proportional hazard functions, based on sample-space partitions. Right censoring introduces two major difficulties which make the existing sample-space partition tests for…

统计方法学 · 统计学 2021-03-16 Malka Gorfine , Matan Schlesinger , Li Hsu

While the problem of testing multivariate normality has received considerable attention in the classical low-dimensional setting where the sample size $n$ is much larger than the feature dimension $d$ of the data, there is presently a…

统计方法学 · 统计学 2025-12-23 Xin Bing , Derek Latremouille

We propose a test of many zero parameter restrictions in a high dimensional linear iid regression model with $k$ $>>$ $n$ regressors. The test statistic is formed by estimating key parameters one at a time based on many low dimension…

统计理论 · 数学 2023-12-12 Jonathan B. Hill

Robust tests of general composite hypothesis under non-identically distributed observations is always a challenge. Ghosh and Basu (2018, Statistica Sinica, 28, 1133--1155) have proposed a new class of test statistics for such problems based…

统计理论 · 数学 2019-01-08 Abhik Ghosh , Ayanendranath Basu

In recent years, Bayesian nonparametric statistics has gathered extraordinary attention. Nonetheless, a relatively little amount of work has been expended on Bayesian nonparametric hypothesis testing. In this paper, a novel Bayesian…

统计理论 · 数学 2015-05-08 Luai Al Labadi , Emad Masuadi , Mahmoud Zarepour

We propose optimal Bayesian two-sample tests for testing equality of high-dimensional mean vectors and covariance matrices between two populations. In many applications including genomics and medical imaging, it is natural to assume that…

统计方法学 · 统计学 2021-12-07 Kyoungjae Lee , Kisung You , Lizhen Lin

The aim of this paper is to analyze the weighted KyFan inequality proposed in [11]. A number of numerical simulations involving the exponential weighted function is given. We show that in several cases and types of examples one can imply an…

信息论 · 计算机科学 2015-04-07 Yuri Suhov , Salimeh Yasaei Sekeh

Testing cross-sectional independence in panel data models is of fundamental importance in econometric analysis with high-dimensional panels. Recently, econometricians began to turn their attention to the problem in the presence of serial…

统计方法学 · 统计学 2023-09-18 Hongfei Wang , Binghui Liu , Long Feng , Yanyuan Ma