Automobiles Purchased An automobile owner found that 20 years ago, 75% of Americans said that they would prefer to purchase an American automobile. He believes that the number is much less than 75%...

Extracted text: Automobiles Purchased An automobile owner found that 20 years ago, 75% of Americans said that they would prefer to purchase an American automobile. He believes that the number is much less than 75% today. He selected a random sample of 56 Americans and found that 36 said that they would prefer an American automobile. Can it be concluded that the percentage today is less than 75%? At a=0.10, is he correct? Use the critical value method with tables. Part 1 of 5 potheses and identify the claim. 075 not dlaim This hypothesis tes alled test the Critical value Part: 2 /5 Part 3 of 5 (c) Compute the test value. Always round z score values to at least two decimal places. = Z