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Afile action confidence they will be able to afford health insurance in the future. d. Develop a 95% confidence interval for this population proportion. 36.

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Afile action confidence they will be able to afford health insurance in the future. d. Develop a 95% confidence interval for this population proportion. 36. Automobile Insurance Coverage. According to statistics reported on CNBC, a surpris- ing number of motor vehicles are not covered by insurance. Sample results, consistent with the CNBC report, showed 46 of 200 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. 37. Voter Sentiment. One of the questions Rasmussen Reports included on a 2018 survey of 2.500 likely voters asked if the country is headed in the right direction. Represen- tative data are shown in the file RightDirection. A response of Yes indicates that the respondent does think the country is headed in the right direction. A response of No indicates that the respondent does not think the country is headed in the right direction Respondents may also give a response of Not Sure. a. What is the point estimate of the proportion of the population of likely volers who do think that the country is headed in the right direction? b. At 95% confidence, what is the margin of error! c. What is the 95% confidence interval for the proportion of likely voters who do think that the country is headed in the right direction? d. What is the 95% confidence interval for the proportion of likely voters who do not think that the country is headed in the right direction? e. Which of the confidence intervals in parts (c) and (d) has the smaller margin of error? Why? 38. Franchise Profits. According to Franchise Business Review, over 50% of all food from chises earn a profit of less than $50.000 a year. In the sample of 142 casual dining restau- rants contained in the file CustalDining 81 earned a profit of less than $50,000 last year, & END ATA file Dining Afile action confidence they will be able to afford health insurance in the future. d. Develop a 95% confidence interval for this population proportion. 36. Automobile Insurance Coverage. According to statistics reported on CNBC, a surpris- ing number of motor vehicles are not covered by insurance. Sample results, consistent with the CNBC report, showed 46 of 200 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. 37. Voter Sentiment. One of the questions Rasmussen Reports included on a 2018 survey of 2.500 likely voters asked if the country is headed in the right direction. Represen- tative data are shown in the file RightDirection. A response of Yes indicates that the respondent does think the country is headed in the right direction. A response of No indicates that the respondent does not think the country is headed in the right direction Respondents may also give a response of Not Sure. a. What is the point estimate of the proportion of the population of likely volers who do think that the country is headed in the right direction? b. At 95% confidence, what is the margin of error! c. What is the 95% confidence interval for the proportion of likely voters who do think that the country is headed in the right direction? d. What is the 95% confidence interval for the proportion of likely voters who do not think that the country is headed in the right direction? e. Which of the confidence intervals in parts (c) and (d) has the smaller margin of error? Why? 38. Franchise Profits. According to Franchise Business Review, over 50% of all food from chises earn a profit of less than $50.000 a year. In the sample of 142 casual dining restau- rants contained in the file CustalDining 81 earned a profit of less than $50,000 last year, & END ATA file Dining

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