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One of the most basic topics in many introductory statistical methods texts is inference for a population mean, Î¼. The primary tool for confidence intervals and tests is the Student t samplingâ€¦ (More)

Cross-validation has long been used for choosing tuning parameters and other model selection tasks. It generally performs well provided the data are independent, or nearly so. Improvements have beenâ€¦ (More)

- Kangxia Gu, Hon Keung Tony Ng, Man Lai Tang, William R. Schucany
- Biometrical journal. Biometrische Zeitschrift
- 2008

In this paper we compare the properties of four different general approaches for testing the ratio of two Poisson rates. Asymptotically normal tests, tests based on approximate p -values, exactâ€¦ (More)

An introduction to nonparametric regression is accomplished with selected real data sets, statistical graphics, and simulations from known functions. It is pedagogically effective for many to haveâ€¦ (More)

- Noha A. El-Yamany, Panos Papamichalis, William R. Schucany
- 2007 IEEE International Conference on Acousticsâ€¦
- 2007

This paper proposes a novel image super-resolution (SR) algorithm in a robust estimation framework. SR estimation is formulated as an optimization (minimization) problem whose objective function isâ€¦ (More)

- Patrick D. Gerard, William R. Schucany
- Computational Statistics & Data Analysis
- 2007

We propose a test, like the classical sign test, of whether the probability of an event differs from 0.5 that is appropriate with clustered binary data. It combines a permutation approach and anâ€¦ (More)

- Darcie A. P. Delzell, Richard F. Gunst, +4 authors Robert W. Haley
- Statistics in medicine
- 2012

To properly formulate functional magnetic resonance imaging (fMRI) experiments with complex mental activity, it is advantageous to permit great flexibility in the statistical components of the designâ€¦ (More)

Proportional scaling models are often used in functional imaging studies to remove confounding of local signals by global effects. It is generally assumed that global effects are uncorrelated withâ€¦ (More)

- Robert W. Haley, Jeffrey S. Spence, +6 authors Madhukar H. Trivedi
- Psychiatry research
- 2009

Several case definitions of chronic illness in veterans of the 1991 Persian Gulf War have been linked epidemiologically with environmental exposure to cholinesterase-inhibiting chemicals, which causeâ€¦ (More)

- Liansheng Tang, Wayne A. Woodward, William R. Schucany
- Communications in Statistics - Simulation andâ€¦
- 2008