statistics

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En9009

Mathematics

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1. Please calculate descriptive statistics on the following quantitative numbers AND create either a bar chart, stem and leaf plot, or frequency table (with appropriate intervals). And determine whether or not the data represents a normal curve. (15 points) The following are real numbers tallying the number of votes a member of Congress has cast during one congressional year. Data Set: 55, 67, 25, 43, 45, 36, 80, 45, 66, 76, 43, 55, 55, 45, 45 • Does this data represent a normal curve? YES or NO • Create one visual analytic - a bar chart, stem and leaf plot, or frequency table (with appropriate intervals). Place your answers in the correct boxes below Mean Median Mode Range Sample _ X True middle number Most frequently occurring number Max X – Min X Variance Sample Standard Deviation Standard Confidence Error Interval at 95% (SE) (.05) s2 s S/√n Quartiles Q₁ Q₂ Q₃ Formulas that are not included above X minus Mean =d d² Mean +/- (SE x2)
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1. Please calculate descriptive statistics on the following quantitative numbers AND create
either a bar chart, stem and leaf plot, or frequency table (with appropriate intervals). And
determine whether or not the data represents a normal curve...


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