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The National Center for Drug Abuse is conducting a study to determine if the heroin usage among teenagers has changed. Historically, about 1.3 percent of
The National Center for Drug Abuse is conducting a study to determine if the heroin usage among teenagers has changed. Historically, about 1.3 percent of teenagers have used heroin one or more times. In a recent study of 1800 teenagers, 35 said they had used heroin one or more times.
- (15 points) Is there significant evidence that heroin usage among teenagers has changed?
- (5 points) What concerns do you have about this data?
- (5 points) Interpret the type I and type II errors in the context of the problem
- (5 points) Which of the above errors are possible in this case?
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