1. Internet music. In a survey on downloading music, the Gallup Poll asked 703 Internet users if they "ever down- loaded music from an Internet site that was not authorized by a record company, or not," and 18% responded "yes." Construct a 95% confidence interval for the true propor- tion of Internet users who have downloaded music from an Internet site that was not authorized.

2. Economy worries. In 2008, a Gallup Poll asked 2335 U.S. adults, aged 18 or over, how they rated economic condi- tions. In a poll conducted from January 27-February 1, 2008, only 24% rated the economy as Excellent/Good. Construct a 95% confidence interval for the true propor- tion of Americans who rated the U.S. economy as Excellent/Good.