MDSS’s are analysed in order to determine the most common data mining algorithms utilized by them. Three algorithms have been identified: Naïve Bayes, Multilayer Perceptron and C4.5. Prior to the very analyses the algorithms are calibrated. Several testing configurations are tested in order to determine the best setting for the algorithms. Afterwards, an ultimate comparison of the algorithms orders them with respect to their performance. The evaluation is based on a set of performance metrics. The
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Research Methods –STA630 VU Research Methods (STA630) Contents Lesson 1: INTRODUCTION, DEFINITION & VALUE OF RESEARCH ........................ 14 What is Research?................................................................................................................... 14 What is the value of Research? ............................................................................................... 14 Research helps in developing methodologies ......................................
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answer. b) We would prefer a sample survey to using women who volunteer for a study. What population does it appear that the researchers were interested in? What variables did they measure? A) The research is not considered an experiment. It is more likely to be considered an observation perhaps or an observational study. The sample is women who have already been drinking and been suffering from cancer B) The variable that were measured was the ratio of women getting more sever cancer because of the
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puddle on the street. These chemicals run off into local water sources, but run through soil first. It is important to know how effective the soil is at removing chemicals like oil, vinegar, and laundry detergent. Experiment 1: Oil hypothesis - If oil is dumped on the ground, then the groundwater below
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assessing test anxiety using standardized instruments. Part III extensively describes and provides treatment scripts for test anxiety. In addition to advanced undergraduate and graduate students in the social sciences, this text is designed to attract two audiences—the quantitatively oriented professors teaching
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ACCT 601– Managerial Accounting Investigating Cost Drivers Part A – Instructions The object of this exercise to gain a better understanding of overhead costs through the use of regression analysis. In particular, you will investigate which service department activities appear to drive or cause departmental overhead. The data you will use is from a proprietary database which contains detailed departmental (i.e. USED, NEW CAR, SERVICE, BODY SHOP) financial information for approximately 250
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Applied Statistical Methods Larry Winner Department of Statistics University of Florida February 23, 2009 2 Contents 1 Introduction 1.1 Populations and Samples . . . . . . . . . . . 1.2 Types of Variables . . . . . . . . . . . . . . . 1.2.1 Quantitative vs Qualitative Variables 1.2.2 Dependent vs Independent Variables . 1.3 Parameters and Statistics . . . . . . . . . . . 1.4 Graphical Techniques . . . . . . . . . . . . . 1.5 Basic Probability . . . . . . . . . . . . . . . . 1.5.1 Diagnostic
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between two variables. 3. Construct validity. • Definition: The extent to which a higher-order construct is well represented (i.e., well measured) in a particular research study. 4. External validity. • Definition: The extent to which the study results can be generalized to and across populations of persons, settings, times, outcomes, and treatment variations. 10.3. What is statistical conclusion validity, and what is the difference between null hypothesis significance testing and
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The first step is to determine a problem or make an observation. The second step is the development of the hypothesis. Testing the hypothesis is the third step. Recording the observations is the fourth step. The final step is to draw a conclusion(s) (Cowens, 2006). The scientific method is used in all fields of research. Primary and secondary data is used in research to support a hypothesis. A research first focuses on secondary data. Secondary data is data collected from another resource. Researchers
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(CSR), bank size, the level of risk in the bank and ( ADINT) on one hand and (CFP) on the other hand in the Jordanian banking companies.The study has insisted on the importance of adopting (CSR) in the banking sector and the importance of preparing more researches related to (CSR) field. KEYWORDS: CORPORATE SOCIAL RESPONSIBILITY, CORPORATE FINANCIAL PERFORMANCE. 1. Introduction The financial statements are the main tool for external and
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