To use statistical methods to make decisions‚ we need access to data. Consider the following examples about decision making. 1. A government agency wants to find the average income of households in the United States. 2. A company wants to find the percentage of defective items produced on a machine. 3. A researcher wants to know if there is an association between eating unhealthy food and cholesterol level. 4. A pharmaceutical company has developed a new medicine for a disease and it wants to
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STANFORD PRISON EXPERIMENT One of the most interesting studies made in history was led by Philip Zimbardo‚ a psychologist and a former classmate of Stanley Milgram (who was famous for his Milgram experiment). He sought to expand on Milgram’s experiment about impacts of situational variables on human behavior by simulating a prison environment‚ in which volunteering students were randomly assigned as prisoners or prison guards. Many controversies have been elicited from this experiment‚ and it was with
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number of heart beats increase‚ as the caffeine concentration increases‚ as shown in the results. Conclusion: The hypothesis was correct as the heart beat did increase as the caffeine concentration increased. However‚ this experiment could have been more fair due to the following: * All the daphnia used
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the okay to do the experiment‚ I grabbed the girls and went to work. The experiment I picked was the conservation concept‚ where the idea that merely changing the appearance of objects does not necessarily change other key properties. In other words‚ just because I put the same amount of water in a bigger case‚ doesn’t change how much water there is. I predict that both the girls would fail at conservation concept‚ and always
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Comprehensive Case 1.1 Enron 1. There were several parties responsible for the "crisis of confidence" created by the Enron debacle. Enron’s executives were responsible for their behavior in trying to adjust their financial statements. Andersen’s auditors were responsible for not doing their jobs with integrity and not keeping their independence in from Enron. Regulatory groups were responsible for making
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Bread Mold Experiment Mold is something that we often take for granted‚ as something that makes us have to throw the bread away or the cheese smell bad. Mold is‚ in fact‚ a fascinating organism which has had many different uses over the years and our lives would not be the same without it. Most of us know that food seems to become moldy more quickly in the summer than in the winter when it is colder. Food in refrigerators seems to keep longer than food left out in the sun. Is this true? Does temperature
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analogue experiment blind design case study confound control group correlation correlational method dependent variable double-blind design epidemiological study A research method in which the experimenter produces abnormal-like behavior in laboratory participants and then conducts experiments on the participants. An experiment in which participants do not know whether they are in the experimental or the control condition. A detailed account of a person’s life and
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pleasant‚ fruit-like odors and are the chemicals responsible for the odors and flavors of many fruits (oranges‚ bananas‚ pineapples) and flowers. In most cases‚ such natural products get their properties from a mixture of organic compounds. In this experiment you will prepare two esters of o-hydroxybenzoic acid‚ more commonly known as salicylic acid. One of the esters‚ acetylsalicylic acid‚ is aspirin‚ the common analgesic. We will synthesize aspirin by mixing salicylic acid with acetic anhydride. The
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Throughout the experiments the size of the balloons stayed about the same size except for in experiment 3. Also the bottles that had more sugar had a stronger scent of alcohol and also contained more foam on top of the liquid. All yeast in each of the bottles seemed to have fermented at the same time and stopped/slowed down‚ the growing process‚ at the same time. Bottle 3 also would always overflow and the foam would fill the ballon in every experiment. Another trend with bottle 3 was that in the
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Enron: Shaping The Future of Ethics In Business “Give me the story– please‚ the story. If I can finally understand the case in simple terms‚ I can‚ in turn‚ tell the same story to the jury and make them understand it as well. I go about my life confused most of the time‚ but when I get something clear I usually can communicate it. Getting it clear is not the work of huge minds‚ which often are baffled by themselves‚ but the labor of ordinary minds that understand simplest of stories… most of all
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