In a study of 420,087 cell phone users, 125 subjects developed cancer of the brain or nervous system. Test the claim of

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In A Study Of 420 087 Cell Phone Users 125 Subjects Developed Cancer Of The Brain Or Nervous System Test The Claim Of 1 (23.69 KiB) Viewed 25 times

In a study of 420,087 cell phone users, 125 subjects developed cancer of the brain or nervous system. Test the claim of a somewhat common belief that such cancers are affected by cell phone use. That is, test the claim that cell phone users develop cancer of the brain or nervous system at a rate that is different from the rate of 0.0340% for people who do not use cell phones. Because this issue has such great importance, use a 0.005 significance level. Identify the null hypothesis, alternative hypothesis, test statistic, P-value, conclusion about the null hypothesis, and final conclusion that addresses the original claim. Use the P-value method and the normal distribution as an approximation to the binomial distribution.