14.60 Crime and Educational Achieve- ment A criminologist studying criminal offenders who have a record of one or more arrests is interested in knowing whether the educational achieve- ment level of the offender influences the frequency of arrests. He has classified his data using four educa- tional level classifications: A: Completed grade 6 or less B: Completed grade 7, 8, or 9 C: Completed grade 10, 11, or 12 D: Education beyond grade 12 The contingency table shows the number of offenders in each educational category, along with the number of times they have been arrested.

Do the data present sufficient evidence to indicate that the number of arrests is dependent on the educa- tional achievement of a criminal offender? Test using = 0.05.

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Educational Achievement Number of Arrests A B C D 1 2 15 3 or more 557 40 43 2- 25 18 8 12 328 30 22 10