- Problem 3 A Sample Survey Is Designed To Estimate The Proportion Of Sport Utility Vehicles Being Driven In The State Of 1 (57.1 KiB) Viewed 40 times
Problem 3: A sample survey is designed to estimate the proportion of sport utility vehicles being driven in the state of California. A random sample of 500 registrations are selected from a Department of Motor Vehicles database, and 68 are classified as sport utility vehicles. a) Use an 83% confidence interval to estimate the proportion of sports utility vehicles in California. Interpret your answer in the context of the problem. b) The boss of the department of Motor Vehicle claims that more than 14% of the cars being driven in the states of California are sport utility vehicles. Is there enough evidence to support the boss's claim at 2% level of significance? (State clearly your claims, null hypothesis, alternative hypothesis in your solutions)