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Testing proportions

The manufacturer of Feel Better aspirin advertises that 60% of pediatricians recommend Feel Better for children under twelve. Safe and Sound, a rival manufacturer, surveyed 650 pediatricians and found that only 357 of them recommended Feel Better for children under twelve. Safe and Sound now claims that Feel Better's advertising is false. What can you say about Safe and Sound's claim at a 0.05 level of significance?

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