Question: A sample survey is designed to estimate the proportion of sports utility vehicles being driven in the state of California. A random sample of 500

A sample survey is designed to estimate the proportion of sports 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 sports utility vehicles.
a. Use a 95% confidence interval to estimate the proportion of sports utility vehicles in California.
b. How can you estimate the proportion of sports utility vehicles in California with a higher degree of accuracy?

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a The point estimate of p is x n 68 500 136 and the approximate 95 confid... View full answer

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