Observational Study Project: Data Analysis

Observational Study Project: Data Analysis

<p> Observational Study Project: Data Analysis</p><p>Create a written report on your observational study including the following:</p><p>Variables and Data</p><p>___ Collect data for at least 30 observational units </p><p>___ Explain how data was collected (include list or partial list of population if applicable)</p><p>___ Define all variables and indicate the type of variable for each</p><p>___ Provide a print out of the data as entered into Statcruch</p><p>Calculations for measures of center</p><p>___ Explain the procedure for locating the median</p><p>___ Determine the median of each measurement variable</p><p>___ Explain the procedure for calculating the mean</p><p>___ Calculate the mean for each measurement variable</p><p>Calculations for measures of spread</p><p>___ Explain the procedure for computing the five-number summary. Compute the five-number summary for each measurement variable ___ Calculate the IQR. Explain the procedure for calculating the IQR and explain what this tells you about a data set.</p><p>___ Calculate the standard deviation for each measurement variable.</p><p>___ Explain the procedure for calculating the standard deviation and what this number tells you about a data set Distributions of Single Variables</p><p>___ Create bar graphs for categorical variables </p><p>___ Write a sentence summarizing each bar graph</p><p>___ Create dotplots, stemplots, and histograms for each quantitative variable</p><p>___ Write a paragraph describing the key features (center, spread, shape, and outliers) for each quantitative variable </p><p>Comparing Categorical Variables</p><p>___ Create a two-way table for comparing the distributions of categorical variables. (If you only have one categorical variable, you will first need to divide one of your quantitative variables into categories.)</p><p>___ Create a segmented bar graphs for the pair of categorical variables</p><p>___ Write a paragraph describing the relationship between the categorical variables</p><p>Comparing Quantitative Variables</p><p>___ Create a back-to-back stemplot for each quantitative variable comparing different categories of one of the categorical variables.</p><p>___ Create a side-by-side boxplot for each measurement variable comparing different categories of one of the categorical variables.</p><p>____ Write a paragraph comparing the distributions for each quantitative variable</p>

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