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相关论文: The Optimal Sample Size in Crosswise Model for Sen…

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Research often necessitates of samples, yet obtaining large enough samples is not always possible. When it is, the researcher may use one of two methods for deciding upon the required sample size: rules-of-thumb, quick yet uncertain, and…

统计方法学 · 统计学 2016-04-08 Jose D. Perezgonzalez

Portnoy (2019) considered the problem of constructing an optimal confidence interval for the mean based on a single observation $\, X \sim {\cal{N}}(\mu , \, \sigma^2) \,$. Here we extend this result to obtaining 1-sample confidence…

统计理论 · 数学 2022-02-09 Stephen Portnoy , Anirban DasGupta

It is well known that if the power spectral density of a continuous time stationary stochastic process does not have a compact support, data sampled from that process at any uniform sampling rate leads to biased and inconsistent spectrum…

统计理论 · 数学 2010-06-09 Radhendushka Srivastava , Debasis Sengupta

Estimating the mode of a unimodal distribution is a classical problem in statistics. Although there are several approaches for point-estimation of mode in the literature, very little has been explored about the interval-estimation of mode.…

统计理论 · 数学 2025-04-01 Manit Paul , Arun Kumar Kuchibhotla

Probability proportional to size (PPS) sampling schemes with a target sample size aim to produce a sample comprising a specified number $n$ of items while ensuring that each item in the population appears in the sample with a probability…

统计方法学 · 统计学 2024-11-14 Brian Hentschel , Peter J. Haas , Yuanyuan Tian

Experimental studies often fail to appropriately account for the number of collected samples within a fixed time interval for functional responses. Data of this nature appropriately falls under an Infill Asymptotic domain that is…

统计方法学 · 统计学 2024-03-12 Cory W. Natoli , Edward D. White , Beau A. Nunnally , Alex J. Gutman , Raymond R. Hill

In this paper, we develop an approach for the exact determination of the minimum sample size for the estimation of a Poisson parameter with prescribed margin of error and confidence level. The exact computation is made possible by reducing…

统计理论 · 数学 2008-06-19 Xinjia Chen

Clinical prediction models are estimated using a sample of limited size from the target population, leading to uncertainty in predictions, even when the model is correctly specified. Generally, not all patient profiles are observed…

统计方法学 · 统计学 2024-02-09 Doranne Thomassen , Saskia le Cessie , Hans van Houwelingen , Ewout Steyerberg

In this paper we have considered the problem of estimating the population mean in systematic sampling using information on an auxiliary variable in presence of non response. Some modified ratio, product and difference type estimators in…

统计方法学 · 统计学 2014-03-06 Hemant K. Verma , R. D. Singh , Rajesh Singh

Many partial identification problems can be characterized by the optimal value of a function over a set where both the function and set need to be estimated by empirical data. Despite some progress for convex problems, statistical inference…

统计方法学 · 统计学 2022-08-31 Matthew Tudball , Rachael Hughes , Kate Tilling , Jack Bowden , Qingyuan Zhao

It is of particular interest to reconstruct or estimate bandlimited graph signals, which are smoothly varying signals defined over graphs, from partial noisy measurements. However, choosing an optimal subset of nodes to sample is NP-hard.…

信号处理 · 电气工程与系统科学 2017-11-21 Xuan Xie , Hui Feng , Junlian Jia , Bo Hu

Many recently developed Bayesian methods have focused on sparse signal detection. However, much less work has been done addressing the natural follow-up question: how to make valid inferences for the magnitude of those signals after…

统计方法学 · 统计学 2021-03-02 Spencer Woody , Oscar Hernan Madrid Padilla , James G. Scott

The problem tackled in this paper is the determination of sample size for a given level and power in the context of a simple linear regression model. At a technical level, the simple linear regression model is a five-parameter model. It is…

统计方法学 · 统计学 2019-07-25 Tianyuan Guan , M. Khorshed Alam , M. Bhaskara Rao

Optimal portfolio selection problems are determined by the (unknown) parameters of the data generating process. If an investor wants to realise the position suggested by the optimal portfolios, he/she needs to estimate the unknown…

投资组合管理 · 定量金融 2023-04-19 Taras Bodnar , Holger Dette , Nestor Parolya , Erik Thorsén

In this paper, we develop an approach for the exact determination of the minimum sample size for estimating the parameter of an integer-valued random variable, which is parameterized by its expectation. Under some continuity and unimodal…

统计理论 · 数学 2012-11-20 Xinjia Chen , Zhengjia Chen

We propose a general method for constructing confidence intervals and statistical tests for single or low-dimensional components of a large parameter vector in a high-dimensional model. It can be easily adjusted for multiplicity taking…

统计理论 · 数学 2014-06-24 Sara van de Geer , Peter Bühlmann , Ya'acov Ritov , Ruben Dezeure

There are many different proposed procedures for sample size planning for the Wilcoxon-Mann-Whitney test at given type-I and type-II error rates $\alpha$ and $\beta$, respectively. Most methods assume very specific models or types of data…

统计方法学 · 统计学 2018-10-10 Martin Happ , Arne C. Bathke , Edgar Brunner

Estimating the probability of the binomial distribution is a basic problem, which appears in almost all introductory statistics courses and is performed frequently in various studies. In some cases, the parameter of interest is a difference…

统计计算 · 统计学 2024-08-21 Almog Peer , David Azriel

The proportional hazards assumption in the commonly used Cox model for censored failure time data is often violated in scientific studies. Yang and Prentice (2005) proposed a novel semiparametric two-sample model that includes the…

统计方法学 · 统计学 2012-06-06 Guoqing Diao , Donglin Zeng , Song Yang

We provide a semi-parametric analysis for the proportional likelihood ratio model, proposed by Luo & Tsai (2012). We study the tangent spaces for both the parameter of interest and the nuisance parameter, and obtain an explicit expression…

统计理论 · 数学 2019-07-15 Yair Goldberg , Malka Gorfine