An automobile owner found that 20 years ago, 76% of Americans said that they would prefer to

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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 56 Americans and found that 38 said that they would prefer an American automobile. Can it be concluded that the percentage today is less than 76%? At α = 0.01, is he correct?

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H 0 p 076 H 1 p 076 claim C V 233 Do ...View the full answer

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