Test the given claim. Identify the nullhypothesis, alternativehypothesis, teststatistic, P-value, and then state the conclusion about the nullhypothesis, as well as the final conclusion that addresses the original claim. Among 2197 passenger cars in a particularregion, 237 had only rear license plates. Among 311 commercialtrucks, 47 had only rear license plates. A reasonable hypothesis is that commercial trucks owners violate laws requiring front license plates at a higher rate than owners of passenger cars. Use a 0.05 significance level to test that hypothesis.

a. Test the claim using a hypothesis test.

b. Test the claim by constructing an appropriate confidence interval.

a. Identify the null and alternative hypotheses for this test. Let population 1 correspond to the passengercars and population 2 correspond to the commercialtrucks. Let a success be a vehicle that only has a rear license plate.