The claim is that less than 1 2 of adults in the United States have carbon monoxide

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The claim is that less than 1 2 of adults in the United States have carbon monoxide detectors. A KRC Research survey of 1005 adults resulted in 462 who have carbon monoxide detectors.

Find the value of the test statistic z using

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Elementary Statistics

ISBN: 9780321500243

11th Edition

Authors: Mario F. Triola

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