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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Scientific Management The Industrial Revolution that started with the development of steam power and the creation of large factories in the late Eighteenth Century lead to great changes in the production of textiles and other products. The factories that evolved‚ created tremendous challenges to organization and management that had not been confronted before. Managing these new factories and later new entities like railroads with the requirement of managing large flows of material‚ people‚ and information
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Environmental Science The Scientific Method Amber Steadham October 31‚ 2012 Abstract: We conducted several experiments using the Scientific Method. We made observations‚ recorded them and used our observations to propose a hypothesis. The experiments included chemical and physical reactions dealing with torn news paper‚ appearance of rock salt crystals‚ the appearance of sand‚ oil and water on plastic‚ and making iodine in water and mineral oil. We found that all these included four physical
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ABSTRACT The objective of this project is to design LCD digital oscilloscope for practical use. The basic concept for the project involves reading the voltage signal at the input and displaying it on the screen of an alphanumeric LCD. The input analog signals are supplied to the ADC(Analog to Digital Converter)‚ which are then sampled by it and the amplitude of the signal(voltage) is displayed on the LCD. Device Components: Microcontroller or processor: We used Atmega16- an Atmel AVR series
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The scientific method is a method for conducting an objective investigation. The scientific method involves making observations and conducting an experiment to test a hypothesis. The number of steps of the scientific method isn’t standard. Some texts and instructors break up the scientific method into more or fewer steps. Some people start listing steps with the hypothesis‚ but since a hypothesis is based on observations (even if they aren’t formal)‚ the hypothesis usually is considered to be the
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Track Software Inc Integrative Case Assignment 1 Rey-Anne Paynter808000390 2/19/2013 a. (1) Stanley’s focus is o n maximizing profits. This is the correct goal because the goal of anyfirm‚ and therefore its financial manager‚ should be to maximize its value and by extensionthe wealth of the shareholders. (2) There is potential for an agency problem if Stanley decides to go ahead and invest in thesoftware developer. This investment will cause a temporary decrease in the
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FIN303 Financial Management Spring 2013 This course provides a systematic treatment of the fundamentals of the theory and practice of Finance. The course will consist of lectures‚ case studies‚ and reviews of homework. It is designed to provide students with a broad‚ systematic view of finance in the corporate context. By the end of the class‚ successful students will be able to analyze firm performance‚ value financial assets‚ determine the cost of capital‚ evaluate capital structure and dividend
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following. Excavation and Earthworks D3 Clearing undergrowth Clearing site of undergrowth‚ bushes‚ scrub and the like and grubbing up their roots‚ which shall be deemed to include their disposal‚ shall given in square meter Before the construction work begin‚ the site must be prepared by clearing the site and grubbing up the roots of undergrowth‚ bushes‚ scrub and any kind of small trees. The disposal material from the clearing site must be removed. The clearing and disposal of undergrowth
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each water flea. The base heart rate is the control in my experiment. The variables in the experiment are alcohol and caffeine. After finding the control of the first flea I will surround it with alcohol. The second flea will go through the same process as the first flea did‚ except the variable will be caffeine. The purpose of these two experiments is to see how surrounding one water flea with alcohol and another with caffeine affects each water flea’s heart rate. I believe the Daphnia Magnus (two
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The Scientific Method The scientific method is a form of discovery science. Discovery science is when observations and measurements can be verified with data. Applying the scientific method usually requires six steps. These steps are observation‚ question‚ hypothesis‚ prediction‚ conclusion‚ and results. Not all scientists use these steps in the same way. I own a 55 gallon aquarium with koi‚ “algae eaters‚” and three breeds of tropical fish. Just today I used the scientific method to solve the
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