test the given claim. identify the null​ hypothesis, alternative​ hypothesis, test​ statistic, p-value, and then state the conclusion about the null​ hypothesis, as well as the final conclusion that addresses the original claim. among passenger cars in a particular​ region, had only rear license plates. among commercial​ trucks, 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 significance level to test that hypothesis. a. test the claim using a hypothesis test. b. test the claim by constructing an appropriate confidence interval.