Mathematics, 24.08.2021 01:00 iliketurtures
A study of 420,084 cell phone users found that 138 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 0.0419% for those not using cell phones. a. Use the sample data to construct 95% confidence interval estimate of the percentage of cell phone users who develop cancer of the brain or nervous system. 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?
Answers: 2
Mathematics, 21.06.2019 14:20
Answers; a) 135 degree’s b) 30 degree’s c) 180 or 0 degree’s d) 90 degree’s
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Mathematics, 21.06.2019 17:30
Aplot of land is shaped like a quadrilateral. fences are built on the diagonal to divide the area into 4 sections. what is vi to the nearest tenth? gv = 6.55fv = 5.84vh = 3.27vi = ?
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Mathematics, 21.06.2019 18:10
The number of branches on a tree demonstrates the fibonacci sequence. how many branches would there be on the next two levels of this tree? 13 | | | m branches
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A study of 420,084 cell phone users found that 138 of them developed cancer of the brain or nervous...
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