Statistics Solutions

(See Steps) A survey asked a random sample of 1382 drivers questions about their driving. Responses to a number of questions were then combined to yield

Question: A survey asked a random sample of 1382 drivers questions about their driving. Responses to a number of questions were then combined to yield a measure of "angry/threatening driving," commonly called "road rage." What driver characteristics go with road rage? There were no significant differences among races or levels of education. What about the effect of the driver's age? Here are the mean responses for three age-groups:

The report says the \(\mathrm{F}=34.96\), with \(\mathrm{P}<.01\)

  1. What are the null and alternative hypotheses for the ANOVA F test? Be sure to explain what means the test compares.
  2. Based on the sample means and the \(F\) test, what do you conclude?

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