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A study of 420, 005 cell phone users found that 137 of them developed cancer of the brain or nervous system. Prior to this study
A study of 420, 005 cell phone users found that 137 of them developed cancer of the brain or nervous system. Prior to this study of cell phone use, the rate of such cancer was found to be 0.0346% for those not using cell phones. Construct a 95% confidence interval estimate of the proportion of cell phone users who developed cancer of the brain or nervous system. Round your answer to five decimal places as needed.
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