The Consumer Reports National Research Center conducted a telephone survey of 2000 adults to learn about the major economic concerns for the future (Consumer reports, January 2009). The survey results showed that 1760 of the respondents think 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. At 90% confidence, what is the margin of error? c. Develop a 90% confidence interval for the population proportion of adults who think the future health of Social Security is a major economic concern
The Consumer Reports National Research Center conducted a telephone survey of 2000 adults to learn about the major economic concerns for the future (Consumer reports, January 2009). The survey results showed that 1760 of the respondents think 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. At 90% confidence, what is the margin of error? c. Develop a 90% confidence interval for the population proportion of adults who think the future health of Social Security is a major economic concern
Glencoe Algebra 1, Student Edition, 9780079039897, 0079039898, 2018
18th Edition
ISBN:9780079039897
Author:Carter
Publisher:Carter
Chapter10: Statistics
Section10.6: Summarizing Categorical Data
Problem 30PPS
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The Consumer Reports National Research Center conducted a telephone survey of 2000
adults to learn about the major economic concerns for the future (Consumer reports, January
2009). The survey results showed that 1760 of the respondents think 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. At 90% confidence, what is the margin of error?
c. Develop a 90% confidence interval for the population proportion of adults who think
the future health of Social Security is a major economic concern.
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