in a previous poll, 26% of adults with children under the age of 18 reported that their family ate dinner together 7 nights a week. Suppose that, in a more recent poll, 313 of 1300 adults with children under the age of 18reported that their family ate dinner together 7 nights a week. Is there sufficient evidence that the proportion of families with children under the age of 18 who eat dinner together 7 nights a week has decreased at the a=0.01 significance level?

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