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In a previous poll, 35% of adults with children under the age of 18 reported that...
In a previous poll, 35% 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, 445 of 1300 adults with children under the age of 18 reported 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 alpha equals =0.01 significance level?
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