8. Because of the popularity of movies as an entertainment medium for college students, you plan to do a national study of the average cost of a movie ticket. If you assume that o= $0.50, what sample...

Extracted text: 8. Because of the popularity of movies as an entertainment medium for college students, you plan to do a national study of the average cost of a movie ticket. If you assume that o= $0.50, what sample size would you have to take to be 95% confident that your estimate was within $0.25 of the true mean ticket prices? %3D