Automobiles Purchased An automobile owner found that 20 years ago, 72% of Americans sald that they would prefer to purchase an American automobile. He believes that the number is much less than 72% today. He selected a random sample of 40 Americans and found that 25 said that they would prefer an American automobile. Can it be concluded that the percentage taday is less than 72%? At a =0.10, is he correct? Use the P-value method with a TI-83 Plus/TI-84 Plus calculator.

Automobiles Purchased An automobile owner found that 20 years ago, 72% of Americans sald that they would prefer to purchase an American automobile. He believes that the number is much less than 72% today. He selected a random sample of 40 Americans and found that 25 said that they would prefer an American automobile. Can it be concluded that the percentage taday is less than 72%? At a =0.10, is he correct? Use the P-value method with a TI-83 Plus/TI-84 Plus calculator.

Holt Mcdougal Larson Pre-algebra: Student Edition 2012

1st Edition

ISBN:9780547587776

Author:HOLT MCDOUGAL

Publisher:HOLT MCDOUGAL

Chapter11: Data Analysis And Probability

Section: Chapter Questions

Problem 8CR

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