The 2007 unemployment rates of countries in the European Union
The 2007 unemployment rates of countries in the European Union shown in Exercise 2.64 ranged from 3.2 to 8.7, with Q1 = 4.5, median = 6.7, Q3 = 7.8, a mean of 6.3, and standard deviation of 1.8.
a. In a box plot, what would be the values at the outer edges of the box, and what would be the values to which the whiskers extend?
b. Greece had the highest unemployment rate of 8.7. Is it an outlier according to the 3 standard deviation criterion? Explain.
c. What unemployment value for a country would have a z -score equal to 0?
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