Health insurance: In 2008, the General Social Survey asked 182 people whether they received health insurance as a benefit from their employer. A total of 60 people said they did. a) Find a point estimate for the proportion of people who receive health insurance from their employer. b) Construct a 95% confidence interval for the proportion of people who receive health insurance from their employer. c) An economist states that 50% of employees receive health insurance from their employer. Does the confidence interval contradict this statement? Explain.

1. What conclusions can you draw about the proportions of Satisfaction with Quality of Care from Nurses and Satisfaction with Quality of Care from Specialists from the​ chart?     A. The confidence intervals​ overlap, so we can conclude that the proportions are significantly different.   B. The confidence intervals do not​ overlap, so we can conclude that the proportions are significantly different.   C. The confidence intervals do not​ overlap, so we cannot conclude that the proportions are significantly different.   D. The confidence intervals​ overlap, so we cannot conclude that the proportions are significantly different.   2. What conclusions can you draw about the proportions of the Satisfaction with Quality of Care from Nurses and Satisfaction with Quality of Care from Practitioners from the​ chart?     A. The confidence intervals do not​ overlap, so we cannot conclude that the proportions are significantly different.   B. The confidence…

15. Pain after surgery: In a random sample of 50 patients undergoing a standard surgical procedure, 15 required medication for postoperative pain. In a random sample of 90 patients undergoing a new procedure, only 16 required pain medication. a. Construct a 95% confidence interval for the difference in the proportions of patients needing pain medication between the old and new procedures. b. A physician claims that the proportion of patients who need pain medication is the same for both procedures. Does the confidence interval contradict this claim? 16

3. In a survey of 2241 adults in a recent year, 650 say they made a New Year's resolution to eat healthier. Construct, by hand, a 95% confidence interval estimate of the proportion of all adults who made a New Year's resolution to eat healthier. b. Interpret your confidence interval in context of the problem. a.

In a study designed to determine whether there was a cluster of brain cancer cases at a Pratt & Whitney plant, record from 223,000 employees were studied and 723 employees with brain tumors were found. Treat those employees as a random sample and construct a 95% confidence interval estimate of the proportion of all adults who develop such tumors. write a brief statement interpreting that confidence interval.

A. Suppose we wish to make an estimate of the proportion of the population that has ever been arrested.  We take a random sample of 500 people. In this sample, 10% of the respondents report having ever been arrested.   Construct a 95% confidence interval for the proportion of people in the population who have been arrested.   2. Interpret, in words, the meaning of this interval.

1.A poll questioned 800 students about their views on pizza for lunch at school. The results indicated that 65% of respondents felt that pizza was a must for lunch at school and would quit school if there was no pizza at lunch. a) Determine the 90% confidence interval.  b) What is the margin of error for this response at the 90% confidence level?

A poll asked adults in a certain country whether immigration was a good thing or a bad thing for the country. Out of 1093 respondents, 448 said it was a good thing. a. What percentage of those taking the poll said immigration was a good thing? b. Check the conditions to determine whether you can apply the CLT to find a confidence interval. c. Find a 95% confidence interval for the proportion who believe immigration is a good thing. a % of those taking the poll said immigration was a good thing (Round to one decimal place as needed.)