Confidence interval-proportion opposing healthcare changes

Reference no: EM1387410

During a national debate on changes to health care, a cable news service performs an opinion poll of 490 small-business owners. It shows that 48 percent of small-business owners do not approve of the changes.

(a) Develop a 90 percent confidence interval for the proportion opposing health care changes. (Round your answers to 4 decimal places.)

(b) Confidence interval for the proportion ___________ and _____________________ .

Reference no: EM1387410

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