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Give the confidence interval

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Reference no: EM131745941

Question - Margin of error and the confidence interval. A study based on a sample of size 144 reported a sample proportion of 0.87 and a margin of error of 0.055 for 95% confidence.

(a) Give the 95% confidence interval.

(b) If you wanted 99% confidence for the same study, would your margin of error be greater than, equal to, or less than 0.055? Explain your answer.

Reference no: EM131745941

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