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OpenStudy (anonymous):
Quick stat question?? help!!
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OpenStudy (anonymous):
A random-digit-dialing sample of 1750 adults found that 1140 used some form of prescription medication. Of those who used prescription drugs, 940 said they are concerned about the current state of health care; 320 of the 610 nonusers said this, too. Let and be the proportion of all prescription drug users and nonusers, respectively, that are concerned regarding health care. A 90% confidence interval for is A. 0.300 0.023. B. 0.300 0.038. C. 0.300 0.045. D. 0.300 0.054.
OpenStudy (anonymous):
in betwwen the 0.3000 should be a plus/minus sign
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