Question

. A certain Consumer Research Center conducted a telephone survey of 2500 adults to learn about the major economic concerns for the future. The survey results showed that 1550 of the respondents think that the future health of Social Security is a major economic concern. a. What is the point estimate of the population proportion of adults who think the future health of Social Security is a major economic concern? b. Develop a 94% confidence interval for the population proportion of adults who think that the future health of Social Security is a major economic concern. c. What sample size would you recommend if the consumer research centers’ goal is to estimate the current proportion of individuals think that the future health of Social Security is a major economic concern with a margin of error of 0.04? Use a 98% confidence level.

Answer 1