j2theennifer j2theennifer

10-04-2024
Mathematics

Answered

A study of 420,003 cell phone users found that 0.0312% 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 0.0322% for those not using cell phones. Use the sample data to construct a 90% confidence interval estimate of the percentage of cell phone users who develop cancer of the brain or nervous system.

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