Question: Prices of hybrid cars. BusinessWeek.com provides consumers with retail prices of new cars at dealers from across the country. The July 2006 prices for the hybrid Toyota Prius were obtained from a sample of 160 dealers. These 160 prices are saved in the HYBRIDCARS file.

1. Give the null and alternative hypotheses for testing whether the mean July 2006 dealer price of the Toyota Prius, \(\mu\), differs from $25,000.
2. Access the HYBRIDCARS file and find the sample mean and sample standard deviation.
3. Use the information in part b to find the test statistic for the hypothesis test.
4. Give the rejection region for the hypothesis test, using \(\alpha=.05\).
5. State the appropriate conclusion for the hypothesis test.

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