The Consumer Reports National Research Center conducted a telephone survey of 2,000 adults to learn about the major economic concerns for the future. The survey results showed that 1,740 of the respondents think the future health of Social Security is a major economic concern
What is the point estimate of the population proportion of adults who think the future health of Social Security is a major economic concern (to 2 decimals)?
At 90% confidence, what is the margin of error (to 4 decimals)? Use critical value with three decimal places
Develop a 90% confidence interval for the population proportion of adults who think the future health of Social Security is a major economic concern (to 3 decimals). Use critical value with three decimal places
Develop a 95% confidence interval for this population proportion (to 4 decimals)