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Math 106 Statistics Semester Project Madeline Sierra April 15, 2010 How Many Hours Do Teenagers Spend Online During the Weekend?

I just want someone to please review my work and tell me if I am on the right track in order to solve this problem.
Math 106 Statistics Semester Project Madeline Sierra April 15, 2010 How Many Hours Do Teenagers Spend Online During the Weekend? For my project, I decided to evaluate how many hours teenagers are spending online during the weekend rather than going outside or doing something else. In order to gather my information, I created a questionnaire containing only one question. I simply asked how many hours in total do they spend on the internet rather than doing something else. The results I got back were pretty astonishing. Before I gathered this information I wanted to prove that teenagers spend during the weekend an average of 15 hours in total. I did a hypothesis testing to the information I gathered. Teenagers spend a lot of time on the internet. There were 30 students in total who were asked how many hours they spend on the internet during the weekend. The average was 13 and the standard deviation is 12.2. I claim that the average is 15. Sample: H n= 30 s= 12.28 ~ 12.3 = 12.73 ~ 12.7 = .05
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