A study of 420,035 cell phone users found that 0.0326% 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 0.0331% for those not using cell phones. Complete parts (a) and (b). Question content area bottom Part 1 a. Use the sample data to construct a 95% confidence interval estimate of the percentage of cell phone users who develop cancer of the brain or nervous system. enter your response here%
A study of 420,035 cell phone users found that 0.0326% 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 0.0331% for those not using cell phones. Complete parts (a) and (b).
Question content area bottom
Part 1
a. Use the sample data to construct a 95% confidence
enter your response here%<p<enter your response here%
(Do not round until the final answer. Then round to three decimal places as needed.)
Part 2
b. Do cell phone users appear to have a rate of cancer of the brain or nervous system that is different from the rate of such cancer among those not using cell phones? Why or why not?
A.
Yes, because 0.0331% is not included in the confidence interval.
B.
Yes, because 0.0331% is included in the confidence interval.
C.
No, because 0.0331% is included in the confidence interval.
D.
No, because 0.0331% is not included in the confidence interval.
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