Question

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

2108

passenger cars in a particular​ region,

236

had only rear license plates. Among

400

commercial​ trucks,

56

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

0.10

significance level to test that hypothesis.

a. Test the claim using a hypothesis test.

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

sufficient evidence to support the claim that commercial trucks owners violate laws requiring front license plates at a higher rate than owners of passenger cars.b. Identify the confidence interval limits for the appropriate confidence interval. Let population 1 correspond to the

passenger cars and population 2 correspond to the commercial trucks. Let a success be a vehicle that only has a rear license plate.

​(Round to four decimal places as​ needed.)

Answer 1