Research Paper Trend and variability of rainfall in Tigray‚ Northern Ethiopia: Analysis of meteorological data and farmers’ perception Accepted 11th May‚ 2013 ABSTRACT Rainfall is the most important but variable climatic parameter in the semiarid tropics. In this study‚ the trend and variability of rainfall were compared with the perception of farmers in northern Ethiopia. Daily rainfall data obtained from five meteorological stations located in different agroecological zones were used
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The t-test for dependent groups is a parametric analysis technique used to determine statistical differences between two related samples or groups. Groups are dependent or related because they were matched as part of the design to ensure similarities between the two groups and thus reduce the effect of extraneous variables. For example‚ two groups might be matched on gender so an equal number of males and females are in each group‚ thus reducing the extraneous effect of gender on the study results
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questions regarding Martha’s research study and her data. Should Martha use an independent-samples t-test or a related samples t-test? Explain your answer. Martha should use an independent-samples t-test. The independent-samples t-test is “the parametric procedure used for significance testing of sample means from two independent samples” (Heiman‚ 2012‚ p. 122). In Martha’s case‚ she has chosen 20 patients in which half will receive visualization therapy and half will not. What are the independent
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[pic]‚ or [pic]. The hypothesis that Σmodel = Σresidual implies that the product A∼I[2] . Invariance considerations imply the MANOVA statistic should be a measure of magnitude of the singular value decomposition of this matrix product‚ but there is no unique choice owing to the multi-dimensional nature of the alternative hypothesis. The most common[3][4] statistics are summaries based on the roots (or eigenvalues) λp of the A matrix: ▪ Samuel Stanley Wilks ’ |ΛWilks =|∏ |(1 / (1 + λp))|
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Statistics for Management Unit 1 Unit 1 Introduction Structure: 1.1 Introduction to Statistics Learning objectives Importance of Statistics in modern business environment 1.2 Definition of Statistics 1.3 Scope and Applications of Statistics 1.4 Characteristics of Statistics 1.5 Functions of Statistics 1.6 Limitations of Statistics 1.7 Statistical Softwares 1.8 Summary 1.9 Terminal Questions 1.10 Answers to SAQs and TQs Answers to Self Assessment Questions Answers to Terminal
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References: David J.S. (2003). Handbook of Parametric and Nonparametric Statistical Procedures. Florida: CRC Press. Arpad K‚ Arpad K & Yulan L.(2008). Computational Intelligence in Medical Informatics. New York: Spinger. Karen W‚ Frances Lee & John G. (2013). Health Care Information Systems: A Practical
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Glossary of Research Terms This glossary is intended to assist you in understanding commonly used terms and concepts when reading‚ interpreting‚ and evaluating scholarly research in the social sciences. Also included are general words and phrases defined within the context of how they apply to social sciences research. Acculturation -- refers to the process of adapting to another culture‚ particularly in reference to blending in with the majority e.g.‚ an immigrant adopting American customs]
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Running head: BUSINESS PROBLEM PROPOSAL Business Problem Proposal University of Phoenix Business Problem Proposal Wal-Mart is a worldwide retail company. In 2008‚ Wal-Mart operated 971 discount stores‚ 2‚447 super centers‚ 132 neighborhood markets‚ and 591 Sam’s Clubs in the United States (MarketLine‚ 2008). The company is headquartered in Bentonville‚ Arkansas and employs about 2.1 million people worldwide. The business problem to be illustrated is the high employee turnover that Wal-Mart experiences
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Study Help for Six Sigma Certification Exam This write-up was developed to help prepare students to take the Six Sigma certification exam. Read VERY carefully the ExpertRating study guide that is posted on moodle. This study guide is also available through the ExpertRating website once you have registered for the certification exam. It is under the “Read the Courseware” option when you log-in. I have posted a PDF of study guide on moodle that is much easier to review and study. If you have access
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Use of Ranks in One-Criterion Variance Analysis Author(s): William H. Kruskal and W. Allen Wallis Source: Journal of the American Statistical Association‚ Vol. 47‚ No. 260 (Dec.‚ 1952)‚ pp. 583-621 Published by: Taylor & Francis‚ Ltd. on behalf of the American Statistical Association Stable URL: http://www.jstor.org/stable/2280779 Accessed: 05-03-2015 13:33 UTC Your use of the JSTOR archive indicates your acceptance of the Terms & Conditions of Use‚ available at http://www.jstor.org/page/info/about/policies/terms
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