The American Bar Foundation publishes information on the characteristics of lawyers in The Lawyer Statistical Report. The following contingency table cross-classifies 307 randomly selected U.S. lawyers by status in practice and the size of the city in which they practice. At the 5% significance level, do the data provide sufficient evidence to conclude that size of city and status in practice are statistically dependent for U.S. lawyers?

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Size of city Less than 250,000 500.000 250,000 499.999 or more Total 30 Eent Judicial Private 122 19 161 31 69 222 practice Salaried Total 43 103 307