Mathematics, 07.08.2019 04:20, TerronRice
Astudy of 420,095 danish cell phone users found that 0.0321% 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 0.0340% for those not using cell phones. use ti-84 caculator. a) use the sample data to construct s 90% ci estimate of thr 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: 1
Mathematics, 21.06.2019 23:30, sheram2010
Solve the equation: x - 9 = -6 + 5 a. 21 b. 7 c. 14 d. 2
Answers: 2
Mathematics, 22.06.2019 00:30, winterblanco
1/2+1/6-3/4 simplify the given expression leaving the answer in improper fraction form.
Answers: 2
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