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93 results for “Hypothesis test”
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Research ArticleOpen accessIn the abstractA New Weighted Rank CorrelationTahani A. Maturi, Ezz H. AbdelfattahProblem Statement: There have been many cases in real life where two independent sources have ranked n objects, with the interest focused on agreement in the top rankings. Spearman's rho and Kendall's tau coefficients assigned equal weights to all rankings. As a result, the literature proposed several weighted correlation coefficients with emphasis on the top rankings, including the top-down, weighted … …Journal of Mathematics and Statistics, Vol. 4, Issue 4 · 31 Dec 2008 · 8,826 accessesView PDFCite
Research ArticleOpen accessIn the abstractTrade-GDP Nexus in Iran: An Application of the Autoregressive Distributed Lag (ARDL) ModelMosayeb Pahlavani, Ed Wilson, Andrew C. WorthingtonThis study employed annual time series data (1960-2003) and unit root tests with multiple breaks to determine the most likely times of structural breaks in major factors impacting on the trade-GDP nexus in Iran We found, inter alia, that the endogenously determined structural breaks coincided with important events in the Iranian economy, including the 1979 Islamic revolution and the outbreak … …American Journal of Applied Sciences, Vol. 2, Issue 7 · 31 Jul 2005 · 8,516 accessesView PDFCite
Research ArticleOpen accessIn the abstractTax Revenues and Economic Growth: An Empirical Investigation for Greece Using Causality AnalysisThomas Anastassiou, Chaido DritsakiThis study examines the relationship between tax revenues and the rate of economic growth for Greece. The viewpoint that the low ratio of direct to indirect taxation promotes high economic growth has been a main subject for discussion. However, not many papers have attempted to test the above hypothesis. One of the main problems that researchers are facing is the … …Journal of Social Sciences, Vol. 1, Issue 2 · 30 Jun 2005 · 8,342 accessesView PDFCite
Research ArticleOpen accessIn the abstractPerceptions of Smartphone Users’ Acceptance and Adoption of Mobile Commerce (MC): The Case of JordanAhmad Nabot, Firas Omar, Mohammed AlmousaThis study investigates smartphone users’ perceptions of adopting and accepting Mobile Commerce (MC) based on users’ perceived adoption under the extended Technology Acceptance Model (TAM2) and Innovation Diffusion Theory (IDT) by providing research constructs for the domain of MC. Also, testing them with reliability and validity and demonstrating their distinctiveness with hypothesis testing. The results show that consumer intention to … …Journal of Computer Science, Vol. 16, Issue 4 · 29 Apr 2020 · 7,866 accessesView PDFCite
Research ArticleOpen accessIn the abstractDensity Power Downweighting and Robust Inference: Some New StrategiesSaptarshi Roy, Kaustav Chakraborty, Somnath Bhadra, Ayanendranath BasuPreserving the robustness of the procedure has, at the present time, become almost a default requirement for statistical data analysis. Since efficiency at the model and robustness under misspecification of the model are often in conflict, it is important to choose such inference procedures which provide the best compromise between these two concepts. Some minimum Bregman divergence estimators and related … …Journal of Mathematics and Statistics, Vol. 15, Issue 1 · 8 Dec 2019 · 7,709 accessesView PDFCite
Research ArticleOpen accessIn the abstractChanges in Leaf Characteristics with Tree Age in Dryobalanops beccarii Dyer in a Restored Forest of Sarawak, MalaysiaEmilla Yastari LAPOK, ONG Kian Huat, John Keen CHUBO, Patricia KING Jie HungStudy on leaf properties of an endangered dipterocarp tree species, Dryobalanops beccarii, was conducted in a restored forest. The study focused on the morphology, nutrient concentration and gas exchange in well-developed leaves of D. beccarii at different ontogenetic phases. The hypothesis tested that leaf physiological and morphological changes are related to the nutrient concentration level of D. beccarii leaves in … …OnLine Journal of Biological Sciences, Vol. 17, Issue 3 · 25 Sep 2017 · 7,542 accessesView PDFCite
Research ArticleOpen accessIn the abstractAntibody Responses to HIV-1 gp120 Hypervariable Regions in Six Long-Term Non-ProgressorsRebecca Rivera, Kyung Hee Kang, Murray B. Gardner et al.Our long-term goal is to discover the combination of host parameters that help some HIV-infected individuals to resist progression to AIDS. In this study, we examined antibody responses using multiple samples obtained from a cohort of Long-Term Non-Progressors (LTNPs). Our hypothesis is that antibody responses to variable regions of the HIV-1 envelope glycoprotein are involved in reducing the viral load … …American Journal of Infectious Diseases, Vol. 12, Issue 2 · 1 Jul 2016 · 7,649 accessesView PDFCite
Research ArticleOpen accessIn the abstractHELICOBACTER INFECTION AND ALLERGY IN MAJORITY AND ROMA POPULATION IN THE CZECH REPUBLICRichter Josef, Vetvicka Vaclav, Kral Vlastimil et al.In our paper we decided to evaluate the hypothesis about the relation between living conditions, infection with Helicobacter pylori and development of allergic problems. Two groups of children, one from the Roma population and one from the majority population, were chosen for this study. Comparing the levels of total IgE and specific IgE antibodies, IgA and IgG Helicobacter pylori antibodies … …American Journal of Immunology, Vol. 10, Issue 3 · 24 Dec 2014 · 6,665 accessesView PDFCite
Research ArticleOpen accessIn the abstractTRANSPIRATION INFLUENCES CADMIUM UPTAKE BY BABY LEAF SPINACH (SPINACIA OLERACEA L.)Carlo Chehine, Paul Holford, Oula Ghannoum et al.Cadmium (Cd) is a toxic heavy metal whose concentration in soils is rising. This study investigated the effect of transpiration on Cd uptake by plants using soil conditions akin to those experienced by field crops. Two experiments were performed using baby leaf spinach (Spinacia oleracea L.) grown in soil containing Chloride (Cl) at a typical concentration of 70 mg kg-1. … …American Journal of Agricultural and Biological Sciences, Vol. 9, Issue 4 · 23 Dec 2014 · 8,065 accessesView PDFCite
Research ArticleOpen accessIn the abstractPROBING NON-ADHERENCE TO PRESCRIBED MEDICINES? A BIVARIATE DISTRIBUTION WITH INFORMATION NUCLEUS CLARIFIESRamalingam ShanmugamNo illness gets cured without the patient’s adherence to the prescribed medicine (s). Reasons such as too many medicines, lack of health insurance coverage, high co-payment cost, loss of cognitive memory to take. are commonly noticed for non-adherence. In some illnesses, the patients who do not adhere to the prescribed medicines end up again in hospital. How should the pertinent … …Current Research in Medicine, Vol. 5, Issue 2 · 17 Jul 2014 · 7,223 accessesView PDFCite