Association [ASA]‚ 2008). Statistics is a division of mathematics that centers on the collection and evaluation of data‚ which can be drawn upon to make conclusions (Aron‚ Aron‚ & Coups‚ 2006‚ 2). Two branches of statistics exist‚ including descriptive and inferential domains. Extrapolation beyond the data is where the real difference emerges. Indeed‚ these two subcategories vary in function and definition. However‚ a relationship exists between descriptive and inferential statistics‚ irrespective of the
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Case Problem 1: National Health Care Association(Descriptive Statistics) The National Health Care Association is concerned about the shortage of nurses the health care profession is projecting for the future. To learn the current degree of job satisfaction among nurses‚ the association has sponsored a study of hospital nurses throughout the country. As part of this study‚ a sample of 50 nurses was asked to indicate their degree of satisfaction in their work‚ their pay and their opportunities for
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ASSIGNMENT: Ethics in Statistics There are a number of possible ways in which unethical behavior can arise in statistics and researchers should steer clear of these. It is relatively simple to manipulate and hide data‚ projecting only what one desires and not what the numbers actually speak‚ thus giving birth to the famous phrase “Lies‚ damned lies and statistics”. However‚ this doesn’t happen all the time and there is no reason not to believe in the conclusions of a statistical analysis (Siddharth
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Statistical Description of Data The word ‘Statistics’ has been derived from the Latin word ‘Status’ which means a political state. It has also it’s either to the Italian word ‘Statista’ or the German word ‘Statistik’ each one of which means a political state. Statistics is defined as “the collection‚ presentation‚ analysis and interpretation of numerical data”. In olden days‚ the data that was collected and maintained for the welfare of the people belonging to the state. We are thankful
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ethics in statistics that need to be followed by a researcher so that only the truth is reported and there is no misrepresentation of the data. Конец формы There are a number of possible ways in which unethical behavior can arise in statistics and researchers should steer clear of these. It is relatively simple to manipulate and hide data‚ projecting only what one desires and not what the numbers actually speak‚ thus giving birth to the famous phrase "Lies‚ damned lies and statistics". However
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How to Lie with Statistics Summary There are some people that rely heavily on the statistical information provided by the media‚ government‚ and other research groups in order to form opinions or come to a conclusion on a particular idea or product. However they fail to realize that a lot of the time the data is manipulated in such a way that leads them to believe something that is not actually the case. Statistics can lie in many ways the first way is by using a sample that has a bias. For instance
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3ER PARCIAL Inferential statistics Sampling * The purpose of sampling is to select a set of elements (sample) from a population that we can use to estimate parameters about the population * The bigger the sampling‚ the more accurate our parameters will be. example: In the experiment of deciding if CEGL girls are smarter that CEGL boys‚ which would be your statistical hypothesis? Hypothesis testing But now‚ you already gathered information about a sample No‚ you will test if your
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disposable personal income in the following report) (b) Interpret the coefficient The slope of disposable income (β1= 0.0953) tell us for each additional billion of dollars in disposable personal income‚ the PCE increase by 0.0953 billion dollars (c) Comment on the significance of model (α = 0.05) Hypotheses: H0: β1 =0 H1 : β1 ≠ 0 Decision rule: reject H0‚ if |tcalc|> |t(α/2‚ n-k-1)| Where tcrit = t (0.025‚ 98) =1.9845 Test statistic: t = = = 48.368 Decision: Reject
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MM207 Statistics Unit IV Mid Term Project 1. In the following situation identify the implied population. A recent report on the weekly news presented the findings of a study on the effectiveness of Onglyza‚ along with diet and exercise‚ for treating diabetes. According to Bennett (2009)‚ a population is defined as “the complete set of people or things being studied” in a statistical study. Given that the information is in relation to finding the success of a drug used to care for
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IMPORTANCE OF STATISTICS In today’s world we are faced with situations everyday where statistics can be applied. Statistics can be used to determine the potential outcome of thousands of things where the human mind alone wouldn’t be able to. Statistics benefits all of us because we are able to predict the future based on data we have previously gathered. Being able to predict the future not only changes our lifestyle but also helps us be more efficient and effective. Statistics is the science of
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