Hypothesis Testing I Pat Obi What is a “Hypothesis?” A statement or claim about the value of a population parameter: μ‚ σ2‚ p Pat Obi‚ Purdue University Calumet 2 Decision Rule 1. x 0 Z s n Compare calculated Z value to Z value from Table (critical Z value) Reject H0 if calculated Z value lies in the rejection/significance region (i.e. region) ALTERNATIVELY: 2. Compare p-value to Reject H0 if p-value < Pat Obi‚ Purdue University Calumet 3 Two-Tail Test Ex: H0: 0
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Test of Hypothesis – Large Sample Test Critical Value (Zx) | Level of Significance (x) | | 1% | 5% | Two tailed test | Z = 2.58 | Z = 1.96 | One tailed test | Z = 2.33 | Z = 1.64 | Q. Z= X- μ σ√n = x- μS.EX The mean height of a random sample of 100 students is 64” and standard deviation is 3”. Test the statement that the mean height of population is 67” at 5% level of significance. Solution: We are given n = 100
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The Negative Impact of Alcoholism There are many negative effects of excessive use of alcohol. Alcoholism negatively impacts one’s lifestyle and health in many ways. There are many major organs that are impacted by the heavy consumption of alcohol. A person’s brain is directly affected by alcohol. Alcohol interferes with the brain’s communication pathways; which causes changes in mood and behavior. This change in mood and behavior impacts the social and mental health of an alcoholic by impacting
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Alcoholism: A Family Disease Today‚ over 76 million American adults have been exposed to alcoholism in the family‚ and it is responsible for more family problems than any other single cause (Parsons). Alcoholism does not just take over the life of the alcoholic‚ but also the lives of the family. Every family member is affected differently‚ but they collectively share the pain and the suffering of living with an alcoholic. When the father is an alcoholic it has the greatest impact on the family
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It is important to learn about this issue because there is a lot of people including teens that suffer from alcoholism. Alcoholism is a self-diagnosed disease with the consumption of mass amounts of alcohol a day. There are more than 3 million cases of alcoholism is the United States per year. In UXL Encyclopedia of Science article “Alcoholism” they said “‚Alcoholism occurs in all types of people‚ both the rich and the poor‚ and in males and females.” I think what the author’s message
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generation in high percentages since the beginning of college education. Today in America it is estimated that approximately 29% of college students are regular alcohol abusers. Another recent study by the National Institute of Alcohol Abuse and Alcoholism performed showed that college students suffered 1‚400 deaths‚ 70‚000 date rapes and assaults‚ and 500‚000 injuries each year as a result of alcohol. (McDonald) Although binge drinking (5+ drinks in one sitting) is considered a normal part of the
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Running Heading: hypothesis and conclusion Unit 4 Short Paper: Hypothesis and Conclusion Kaplan University Ashley Gramma CJ499: Bachelors Capstone in Criminal Justice Professor Christopher Elg March 12‚ 2013 Science proceeds by a continuous‚ incremental process that involves generating hypotheses‚ collecting evidence‚ testing hypotheses‚ reaching evidence based conclusions. (Michael‚ 2002). The scientific process typically involves making observations‚ asking questions‚ forming hypotheses
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a depressant; it impairs your ability to drive‚ slows down your reaction time and causes you to make some risky decisions that you wouldn’t normally take. This essay will also help you comprehend how and why things happen‚ because of alcohol. Alcoholism can kill in many different ways‚ and in general‚ people who drink regularly have a higher rate of deaths from injury‚ violence‚ and some cancers. The earlier a person begins drinking heavily‚ the greater their chance of developing serious illnesses
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Alcoholism in the 21st Century The dictionary describes alcoholism as continued excessive or compulsive use of alcoholic drinks. However‚ this disease is much more complex. Alcohol abuse is a growing problem in the United States today‚ causing more and more deaths each year. It affects nearly everyone in the U.S. today‚ either directly or indirectly. Over half of Americans have at least one close relative that has a drinking problem. About 20 million people in the United States abuse alcohol
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Alcoholism has been demonstrated as the leading addiction in the United States. One of the assumptions can be the availability of the substance. Typically‚ men have been shown to form addition more than women. Additionally‚ alcohol addiction has typically been associated with the disease and moral model of treatment. Discussions regarding if alcohol is a disease that a person is born with or is it a personal choice they make. The DSM-5 has made adjustment to include dependency in the Alcohol
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