Automobiles Purchased An automobile owner found that 20 years ago, 73% of Americans said that they would prefer to purchase an American automobile. He believes that the number is much greater than 73% today. He selected a random sample of 45 Americans and found that 30 said that they would prefer an American automobile. Can it be concluded that the percentage today is greater than 73%? At a=0.05, is he correct? Use the P-value method with tables. Do not round intermediate steps. Part 1. State the hypotheses and identify the claim with the correct hypothesis. Part 2. State the hypotheses and identify the claim with the correct hypothesis. Part 3. Compute the test value. Always round score values to two decimal places. Part 4. Find the -value. Round the answer to four decimal places. Part 5. Reject or not to reject the null hypothesis.
Automobiles Purchased An automobile owner found that 20 years ago, 73% of Americans said that they would prefer to purchase an American automobile. He believes that the number is much greater than 73% today. He selected a random sample of 45 Americans and found that 30 said that they would prefer an American automobile. Can it be concluded that the percentage today is greater than 73%? At a=0.05, is he correct? Use the P-value method with tables. Do not round intermediate steps. Part 1. State the hypotheses and identify the claim with the correct hypothesis.
Part 2. State the hypotheses and identify the claim with the correct hypothesis.
Part 3. Compute the test value. Always round score values to two decimal places.
Part 4. Find the -value. Round the answer to four decimal places.
Part 5. Reject or not to reject the null hypothesis.
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