Clinical tests of the allergy drug Seldane yielded results summarized in the accompanying table. At the 0.05 significance level, test the claim that the occurrence of headaches is independent of the group (Seldane, placebo, control). Based on these results, should Seldane users be concerned about getting headaches?

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Seldane Users Placebo Users Control Headache No headache 49 732 49 616 24 602 Based on data from Merrell Dow Pharmaceuticals, Inc.