The article A Nation Ablaze with Change ( USA Today, July 3, 2001) gave the following data
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a. Construct a stem- and- leaf display for the entire data set. Regard the observations as having two digits to the left of the decimal place. For example, consider 8.5 as 08.5. Also truncate leaves to a single digit. For example, a leaf of 8.5 would be truncated to 8.
b. Comment on any interesting features of the display. Do any of the observations appear to be outliers?
c. Now construct a comparative stem- and- leaf display for the eastern and western states. Write a few sentences comparing the two distributions.
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