You may need to use the appropriate appendix table or technology to answer this question. According...

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You may need to use the appropriate appendix table or technology to answer this question. According to statistics reported on news source, a surprising number of motor vehicles are not covered by insurance. Sample results, consistent with the news report, showed 64 of 400 vehicles were not covered by insurance. (a) What is the point estimate of the proportion of vehicles not covered by insurance? (b) Develop a 95% confidence interval for the population proportion. (Round your answer to four decimal places.) You may need to use the appropriate appendix table or technology to answer this question. According to statistics reported on news source, a surprising number of motor vehicles are not covered by insurance. Sample results, consistent with the news report, showed 64 of 400 vehicles were not covered by insurance. (a) What is the point estimate of the proportion of vehicles not covered by insurance? (b) Develop a 95% confidence interval for the population proportion. (Round your answer to four decimal places.)