Refer to Exercise 2.101 (p. 90) and the data on the number of Superfund sites in each of 75 Arkansas counties.
a. There is at least one outlier in the data. Use the methods of this chapter to detect the outliers.
b. Delete the outlier(s) found in part a from the data set and recalculate measures of central tendency and variation. Which measures are most affected by the removal of the outlier(s)?
Exercise 2.101
The Superfund Act was passed by Congress to encourage state participation in the implementation of a law relating to the release and cleanup of hazardous substances. Hazardous waste sites financed by the Superfund Act are called Superfund sites. A total of 393 Superfund sites are operated by waste management companies in Arkansas (Tabor and Stan wick, Arkansas Business and Economic Review, Summer 1995). The numbers of these Superfund sites in each of Arkansas's 75 counties are shown in the next table.

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260 21 2 88018 16021 29243 21 38077 3 50 532 2 03502 0 21035 3 1362-2 2500-0 33622 0 32264 0