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keiryporthillo
15.04.2020 •
Mathematics
Nicotine patches are often used to help smokers quit. Does giving medicine to fight depression also help? A randomized double-blind experiment assigned 244 smokers to receive nicotine patches and another 245 to receive both a patch and the antidepressant drug bupropion. After a year, 40 subjects in the nicotine patch group had abstained from smoking, as had 87 in the patch-plus-drug group. Your task is to construct and interpret a 99% confidence interval for the difference in the proportion of smokers who abstain when using bupropion and a nicotine patch and the proportion who abstain when using only a patch.
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Ответ:
Step-by-step explanation:
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Ответ:
And we know that the leg that is labeled with a line is also 6.
Use the Pythagorean theorem and solve for x.
a² + b² = x²
3² + 6² = x²
9 + 36 = x²
45 = x²
√45 = x
√9×5 = x
√9√5 = x
3√5 = x
The answer is 3√5
Hope this helps :)