Question

Ever wonder how many words are in a typical inaugural address? The following data represent the lengths of all the inaugural addresses (measured in word count) for all presidents up to Barack Obama.
(a) Determine the mean and median number of words in a presidential inaugural address.
(b) Determine and interpret the quartiles for the number of words in a presidential inaugural address.
(c) Determine the five-number summary for the number of words in a presidential inaugural address.
(d) Determine the standard deviation and interquartile range for the number of words in a presidential inaugural address.
(e) Are there any outliers in the data set? If so, what is (are) the value(s)?
(f) Draw a boxplot of the data.
(g) Describe the shape of the distribution. Support your position using the boxplot and quartiles.
(h) Which measure of central tendency do you think better describes the typical number of words in an inaugural address? Why?
(i) Which measure of dispersion do you think better describes the spread of the typical number of words in an inaugural address? Why?


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  • CreatedApril 27, 2015
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