Hypothesis testing I Kevin Soo Outline • • • • Theory and the research process What is a hypothesis? Hypothesis testing Statistical models Theory and the research process Theory • A belief – Can be true or false – P (belief) • A proposed/possible explanation for something – ‘Some students do poorly at statistics because they have less exposure to mathematics’ – ‘Women don’t date me because I’m ugly’ – ‘Manchester United lost the Premier League because they struggled with injury
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Is standardized testing the way to go? You wake up in the morning belated for the bus because of sleeping late. You arrive in school‚ forgetting to brush your teeth and comb your hair. When you are confronted with the test‚ you are so tired and you get a pink eye. The next event you know is that you fail the test. Do you want to fail for just having an inadequate day? Standardized testing may cause you to stay in the same grade just for having an inadequate day‚ not getting enough sleep‚ etc
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Decision Making essay Care Scenario 1 for Summative Assignment (Sept 2011 Intake) You are to write a 3 000 word (+/- 10% excluding reference list) essay reflecting on the decision making involved in the assessment and delivery of care related to the scenario below. In your work you need to draw on the theoretical perspectives explored during the module so that the learning outcomes are met. The nurse’s role will be an important focus but you need to demonstrate understanding of the importance
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SCHOOL OF LAW Year 2013-14 Term 1 LAW001 ETHICS AND SOCIAL RESPONSIBILITY Instructor: David N. Smith Practice Professor‚ School of Law Tel: Email: Office: 6828 0788 davidsmith@smu.edu.sg School of Law‚ Room 4044‚ Level 4 COURSE DESCRIPTION Issues of ethics and social responsibility arise in all professions and all aspects of life. The failure to anticipate‚ recognize and deal effectively with these issues can have serious implications for individuals‚ companies‚ governments
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Release date: 27 April 2014 Submission date: 9 May 2014 TUTORIAL ON HYPOTHESIS TESTING (1) Basic Concept 1. State the null and alternative hypothesis for each conjecture : a. A researcher thinks that if expectant mothers use vitamin pills‚ the birth weight of the babies will increase. The average birth weight of the population is 3.0kg. b. An engineer hypothesizes that the mean number of defects can be decreased in a manufacturing process of compact disks by using robots instead of humans
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Case Scenario: In the history provided by a patient whose chief complaint is of dizziness and imbalance‚ the patient reports having gone to the Emergency Department 3 months ago due to a sudden onset of severe vertigo that lasted 1 to 2 days‚ and was followed by a gradual easing of symptoms over a period of several days. This pattern of symptoms suggests the possibility of: BPPV Ménière’s Disease Lateral Medullary infarct Vestibular neuritis The sudden onset of
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Engineering Classification of Software Testing Tools Based on the Software Testing Methods Khaled M. Mustafa‚ Rafa E. Al-Qutaish‚ Mohammad I. Muhairat Al-Zaytoonah University of Jordan‚ Airport Street‚ Amman‚ Jordan Abstract During the software development life cycle‚ testing is highly needed to assure the quality of the software process and product. For many years‚ researchers and practitioners came-up with a variety of software tools to automate the testing process. In this paper‚ we will classify
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Software Testing Carnegie Mellon University 18-849b Dependable Embedded Systems Spring 1999 Authors: Jiantao Pan mailto:%20jpan@cmu.edu Abstract: Software testing is any activity aimed at evaluating an attribute or capability of a program or system and determining that it meets its required results. [Hetzel88] Although crucial to software quality and widely deployed by programmers and testers‚ software testing still remains an art‚ due to limited understanding of the principles of software
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product by creating a stain resistant coating which will add the value for the furniture In this paper we will examine the following questions: • How could Guillermo use budgets and performance reports in his decision-making process? • How might ethics influence his accounting decisions? • What accounting information is most relevant for Guillermo to consider when making decisions? Budgets are planning and control tools for management and‚ therefore‚ help to make proactive decisions about business
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TESTING FOR MACROMOLECULES Describe the positive test for starch. Explain how you know. The positive test for starch is adding iodine solution. In the experiment‚ the starch solution had the most dramatic reaction with the iodine solution. It turned to an opaque bluish-purple solution while other samples all turned to a colour related to orange and yellow other than the vegetable oil. But the vegetable oil was more translucent than completely opaque. Describe the positive test for
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