Wald-type tests for two hypotheses concerning parallel mean profiles of several groups
Hiroshima Mathematical Journal, 1998 zbMATH Open Web Interface contents unavailable due to conflicting licenses.
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AxiomsPaired data often arise in medical studies, with a correlation between responses of paired organs or parts. Under an intra-correlated model, this paper proposes a generalized linear model to investigate probable confounding factors of the individual ...
Jinlong Cheng, Zhiming Li, Keyi Mou
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On Wald Type Test for Poisson Processes
, 2019 We consider two statistical problems for inhomogeneous Poisson processes. The first one concerns the parameter estimation and the second one is about the Wald test. We develop the method of moments and One-step MLE method in parameter estimation problem and describe the asymptotic behavior of the test based on the corresponding estimators. We show that
Accrachi, E, Aïdara, C, Dabye, A
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Increasing the Power of Association Studies with Affected Families, Unrelated Cases and Controls
Frontiers in Genetics, 2013 When studying the genetics of inherited diseases, researchers often collect data on affected families, unrelated cases, and healthy controls. However, the joint analysis of such heterogeneous data is difficult, and the simpler analysis of homogeneous ...
William C L Stewart +2 more
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Computational Approach Test using Likelihood Based Tests for the Equality of Inverse Gaussian Means
Revstat Statistical JournalIn this study, we propose three different test procedures by plugging the Wald (W), score (S) and likelihood ratio (LR) statistics into the computational approach test (CAT) to test the equality of inverse Gaussian means when the scale parameters are ...
Gamze Güven +2 more
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Homogeneity Test of Ratios of Two Proportions in Stratified Bilateral and Unilateral Data
MathematicsIn paired-organ studies such as ophthalmology, otolaryngology, and rheumatology, etc., various approaches take highly correlated bilateral data into account for homogeneity tests but are less likely to focus on combined bilateral and unilateral data ...
Huipei Wang, Chang-Xing Ma
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Comparison of Relative Informational Content of Three Section and Five Section Cash-flow Statement in Explaining Future Stock Return of Listed Companies in Tehran Securities and Exchange (TSE) [PDF]
مطالعات تجربی حسابداری مالی, 2011 The main purpose of this research is to compare the relative informational content of operating and financing cash flows of three and five section cash flow statement in explaining future stock return.
D foroghi +3 more
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BMJ Open, 2016 Objectives Facioscapulohumeral muscular dystrophy type 1 (FSHD1) has been genetically linked to reduced numbers (≤8) of D4Z4 repeats at 4q35. Particularly severe FSHD cases, characterised by an infantile onset and presence of additional extra-muscular ...
Antonio Di Muzio +30 more
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Neural Network Approach in Forecasting Realized Variance Using High-Frequency Data
Business Systems Research, 2018 Background: Since high-frequency data have become available, an unbiased volatility estimator, i.e. realized variance (RV) can be computed. Commonly used models for RV forecasting suffer from strong persistence with a high sensitivity to the returns ...
Arnerić Josip +2 more
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Is regularization necessary? A Wald-type test under non-regular conditions
, 2014 We study hypotheses testing in the presence of a possibly singular covariance matrix. We propose an alternative way to handle possible non-regularity in a covariance matrix of a Wald test, using the identity matrix as the weighting matrix when calculating the quadratic form.
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