Automobiles Purchased An automobile owner found that 20 years ago, 76% of Americans said that they would prefer to purchase an American automobile. He believes that the number is much less than 76% today. He selected a random sample of 60 Americans and found that 40 said that they would prefer an American automobile. Can it be concluded that the percentage today is less than 76%? At a=0.05, is he correct? Use the P-value method with tables. Do not round intermediate steps.

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A:

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