[Solution Library] Measures of dispersion. For the data set above, calculate the range, the interquartile range, the variance, and the standard deviation.
Question: Measures of dispersion. For the data set above, calculate the range, the interquartile range, the variance, and the standard deviation. What do these measures tell you about the "spread" of the data? Why is it important to spend time performing basic descriptive statistics prior to conducting inferential statistical tests?
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