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 16:30
The hawaiian alphabet has 12 letters. how many permutations are posible for each number of letters?
Answers: 3
Mathematics, 21.06.2019 17:10
Determine whether the points (β3,β6) and (2,β8) are in the solution set of the system of inequalities below. x ? β3 y < 5? 3x + 2 a. the point (β3,β6) is not in the solution set, and the point (2,β8) is in the solution set. b. neither of the points is in the solution set. c. the point (β3,β6) is in the solution set, and the point (2,β8) is not in the solution set. d. both points are in the solution set.
Answers: 3
Mathematics, 21.06.2019 19:40
Ascatter plot with a trend line is shown below. which equation best represents the given data? y = x + 2 y = x + 5 y = 2x + 5
Answers: 1
A study of 420,084 cell phone users found that 138 of them developed cancer of the brain or nervous...
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