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Gallup survey of 2295 adults at least 18 years old in the U S found...

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Gallup survey of 2295 adults at least 18 years old in the U S found that 455 of them have donated blood in the past two years Construct a 90 confidence intervai for the population proportion of adults in the U S who have donated blood in the past two years Round your answer to three decimal places Find the 90 confidence interval Use Z 1 645 Use the unrounded values in Excel to find the answers to 2 3 and 4 Round your answer to four decimal places 1 Find the sample proportion of adults in the U S who have donated blood in the past two years Put the letter as answer choice in the answer box A 0 1983 B 5 000 C 0 5000 D 0 0083 A 2 The standard error for sample proportion has a value of Put the letter as answer choice in the answer box A 19 0996

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