A study of 420,059 cell phone users found that 140 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 0.0343% for those not using cell phones. Complete parts (a) and (b). a. 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. 0%

MATLAB: An Introduction with Applications
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Author:Amos Gilat
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A study of 420,059 cell phone users found that 140 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 0.0343% for those not using cell phones. Complete parts (a) and (b).
a. 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.
0% <p< 0%
(Round to three decimal places as needed.)
Transcribed Image Text:A study of 420,059 cell phone users found that 140 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 0.0343% for those not using cell phones. Complete parts (a) and (b). a. 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. 0% <p< 0% (Round to three decimal places as needed.)
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