Testing for Sugars‚ Lipids‚ Proteins‚ and Starches in Various Samples Introduction The purpose of this experiment is to define and classify macronutrients identify macronutrients in solutions of unknown composition‚ perform chemical testing methods on foods to test for the presence of macronutrients‚ and recognize experimental controls. Nutrients are divided into two categories‚ micronutrients and macronutrients. Micronutrients are required in small quantities and include vitamins and trace
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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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Bias of Jon Krakauer The book Into the Wild by Jon Krakauer is about a young man named Chris “Alex Supertramp” McCandless‚ who goes into the Alaskan wilderness‚ some say unprepared‚ and dies. In this story Krakauer includes opinions of others like how they did not exactly think highly of Chris or how they thought he was brave‚ but he also has his own bias on Chris McCandless. Like every other opinion‚ there is a reason behind why Krakauer felt the way he did toward Chris. His reason is because
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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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SOFTWARE TESTING SOFTWARE TESTING Testing is the process of executing a program with the intent of finding errors. TESTING PRINCIPLES All tests should be traceable to customer requirements. Tests should be planned long before testing begins. The Pareto principle applies to software testing. Stated simply‚ the Pareto principle implies that 80 percent of all errors uncovered during testing will likely be traceable to 20 percent of all program components. TESTING PRINCIPLES Testing should begin
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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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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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3-5 minute speech Scientists should not be allowed to test products intended for human use on animals. My speech today is about animal testing and I am against it. Animal testing is testing cruelty more than science. Animals are not treated well and are often abused by their handlers. Imagine‚ living in a confined space with other animals‚ some insane‚ some infested with diseases as a result of experiments‚ limited movements‚ having people rub burning products onto you‚ watching your every
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