THE CHI-SQUARE GOODNESS-OF-FIT TEST The chi-square goodness-of-fit test is used to analyze probabilities of multinomial distribution trials along a single dimension. For example‚ if the variable being studied is economic class with three possible outcomes of lower income class‚ middle income class‚ and upper income class‚ the single dimension is economic class and the three possible outcomes are the three classes. On each trial‚ one and only one of the outcomes can occur. In other words‚ a family
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LINES AND PLANES IN SPACE PLANE – is a surface such that if any two points on it are joined by a straight line‚ the line lies wholly on the surface. POSTULATE 1. Through three points not on the same straight line‚ one and only one plane can be passed. A plane is determined by any of the following conditions: 1. Three non-collinear points; 2. A line and a point not on the line; 3. Two intersecting lines; or 4. Two parallel lines. POSTULATE 2. If two planes meet
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Geometry is simply the study of space. There are Euclidean and Non-Euclidean Geometries. Euclidean geometry is the most common and is the basis for other Non-Euclidean types of geometry. Euclidean geometry is based on five main rules‚ or postulates. Differences in these rules are what make new kinds of geometries. There is Euclidean‚ Elliptic‚ and Hyperbolic Geometry. Euclidean geometry is the study of flat space and was invented by Euclid‚ a mathematician from Alexandria‚ in 330 B.C. Euclid described
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Angle is the figure formed by two rays‚ called the sides of the angle‚ sharing a common endpoint‚ called the vertex of the angle. Angles are usually presumed to be in a Euclidean plane‚ but are also defined in non-Euclidean geometry. Angle is also used to designate the measure of an angle or of a rotation. This measure is the ratio of the length of a circular arc to its radius. In the case of an angle (figure)‚ the arc is centered at the vertex and delimited by the sides. In the case of a rotation
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Name of the course: Descriptive geometry and mechanical drawing 1. Organization of the course ( 课程安排 ) 2. Introduction of the course Organization of the course • Lectures---44 • Assignments---submitted before the exercise lesson • Assessment (full score is 100) -Assignments (30%)—submitted in time + high quality; performance and contribution in the classroom. -Final examination (70%). Introduction of the course 1.The Characteristic: graphical language for engineering communication 2.Tasks （
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Chi-square tests 1. INTRODUCTION 1.1 χ2 distribution and its properties A chi-square (χ2) distribution is a set of density curves with each curve described by its degree of freedom (df). The distribution have the following properties: - Area under the curve = 1 - All χ2 values are positive i.e. the curve begins from 0 (except for df=1) increases to a peak and decreases towards 0 as its asymptote - The curve is skewed to the right‚ and as the degree of freedom increases‚ the
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MATERIAL SCIENCE EXPERIMENT-2 NAME OF THE TEST: HARDNESS TEST AIM : OBJECT TO DETERMINE HARDNESS TEST OF A METARIAL INTRODUCTION It become necessary to test engineering materials before they are accepted for processing‚ buying or applying to determine whatever or not they meet the spefications required. One of the tests is hardness test. The Rockwell and brinell machines are those most commonly used for this purpose. PROCUDURE AND LABORATORY REPORT 1. Understad
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EFFECTIVENESS OF CLOZE – TEST AS INTEGRATIVE ASSESSMENT IN READING COMPREHENSION AT LAGUNA STATE POLYTECHNIC UNIVERSITY SAN PABLO CITY CAMPUS ACADEMIC YEAR 2012-2013 For more details call the authors: 09103240206 & 09297447542 A Research Paper Presented to the Faculty of the College of Teacher Education Laguna State Polytechnic University San Pablo City Campus San Pablo City In Partial of Fulfillment Of the Requirements in Methods of Research for the Degree Bachelor of Secondary Education
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very elevated moods‚ a new test for mania includes questions about how happy the person feels and how often he or she laughs. This test has: Answers: A. face validity. B. construct validity. C. concurrent validity. D. content validity. Question 2 Which category of clinical tests tends to have the best standardization‚ reliability‚ and validity? Answers: A. projective tests B. response inventories C. personality inventories D. intelligence tests Question 3 The single
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Do Language Arts Intervention Programs Increase Student Achievement on Language Arts Standardized Tests? Work Cited Fisher‚ Douglas‚ Ivey‚ Gay (2006). Evaluating the interventions for struggling adolescent readers. Journal of Adolescent & Adult Literacy‚ 50(3). Shippen‚ et al. (2005). A Comparison of Two Direct Instruction Reading Programs for Urban Middle School Students. Remedial and Special Education. 26(3)‚ 177-182. Introduction The purpose of this article is to determine whether
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