A study of people who refused to answer survey questions provided the randomly selected sample data shown in the table below. At the 0.01 significance level, test the claim that the cooperation of the subject (response or refusal) is independent of the age category. Does any particular age group appear to be particularly uncooperative?

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Age 18-21 22-29 30-39 40-49 50-59 60 and over Responded 73 255 245 136 138 202 Refused 20 16 27 49