In a study of 420,115 cell phone users, 127 subjects developed cancer of the brain or nervous system. Test the claim of a

Question

In a study of 420,115 cell phone users, 127 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.

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