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# Statistics Essay

HAT SIZE AND INTELLIGENCE
With lead shot or other handy materials to found out how big the brain was that once resided there, and, more often, the size of the head (hat size, effectively) was measured” (Deary, 2001: Chapter 3).The idea of using hat sizes to measure brain size (hence, a person’s intelligence) came from Paul Broca who said, “the brain is larger in mature adults than in the elderly, in men than that in women, in eminent men than in men of mediocre talent… Other things equal, there is a remarkable
Pages: 8 (2000 words), Essay
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Hypothesis Testing
In selecting a test statistic for a hypothesis test, a given sample has to satisfy some conditions. The first is based on the nature of the sample concerning whether it follows a normal distribution or not. In using the z or t- statistic, an assumption must be made that the data follows a standard normal distribution.
Pages: 2 (500 words), Essay
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Hypothesis: Rural residential smoking fires cause more deaths than do urban residential smoking fires.
Both the urban as well as the rural areas focus on the residential fire deaths. For the purpose of this paper we ignore all non residential fire related deaths.To evaluate our hypothesis and other aspects of the paper, we have carried out secondary research by way of a literature review on the subject. The literature available is limited in nature as some data are not up to date. To examine current data and evaluate our hypothesis, we have collected data from various government agencies in the
Pages: 10 (2500 words), Essay
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Health epidemiology & statistics
Such elements appear several times within the sampling frames. For instance, if researchers study patient satisfaction based on emergency room care giving, the authors may include various patients based on various studies. If patients complete patient satisfaction questionnaires, the authors should ensure that they have increased awareness that the completed questionnaires should not be redone. Where the questionnaires are completed more than twice, the second data sets represent duplicates.The
Pages: 8 (2000 words), Essay
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