Problem 4 There is no companion dataset for this problem. Sports car owners living in GA have complained for years that the state vehicle emissions standards discriminate against sports cars (relative to family-style cars). Previous records indicate that 25% of all passenger cars fail emissions on the first time through. In a random sample of 150 sports cars, 55 failed emissions on the first pass. Is there sufficient evidence to indicate that the percentage of first failure for sports cars is higher than the percentage for all passenger cars?

1. What hypotheses are being tested in this problem? State the null and alternative hypotheses.