Final answer:
To determine if the AAA proportion is accurate, we can use a hypothesis test to test the null and alternative hypotheses.
Step-by-step explanation:
In this case, we are given that driver error is the cause of approximately 54 percent of all fatal auto accidents, according to the American Automobile Association (AAA). To determine if the AAA proportion is accurate, we can use a hypothesis test. Let's set up the null and alternative hypotheses:
Null hypothesis (H0): The true proportion of fatal accidents caused by driver error is 54%.
Alternative hypothesis (Ha): The true proportion of fatal accidents caused by driver error is not 54%.
We can then use statistical methods to test these hypotheses and determine if there is enough evidence to reject the null hypothesis and conclude that the AAA proportion is inaccurate.