An old proverb in baseball is “pitching wins pennants.” Seven teams’ pitching, in terms of earned-run average (ERA), and their standing in the American League West are given in the following table (data from Associated Press, June 17, 1990).

Do a 5 percent test to determine whether there is a relationship between ERA and team standing.

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Team Oakland Chicago Minnesota California Seattle Texas Kansas City Standing 1 2 3 4 5 6 7 ERA 2.94 3.01 4.16 3.49 3.90 4.32 4.01