Question: Exercise U4.2 A sample survey is designed to estimate the proportion of sports utility vehicles being driven in PEI. A random sample of 500 registrations

Exercise U4.2 A sample survey is designed to estimate the proportion of sports utility vehicles being driven in PEI. A random sample of 500 registrations are selected from a PEI database, and 68 are classified as sports utility vehicles. (a) Use a 95% confidence interval to estimate the proportion of sports utility vehicles in PEI. (b) How can you estimate the proportion of sports utility vehicles in PEI with a higher degree of accuracy? (Hint: There are two answers. )

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