Develop a confidence interval for the population proportion

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Question - The Consumer Reports National Research Centre conducted a survey of 1100 adults to learn about their major health-care concerns. The survey results showed that 610 of the respondents lack confidence they will be able to afford health insurance in the future.

1. Develop a 90% confidence interval for the population proportion of adults who lack confidence they will be able to afford health insurance in the future.

2. Develop a 95% confidence interval for this population proportion.

3. What happens to the margin of errors as the confidence is increased from 90% to 95%?

Reference no: EM133157421

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