Identify the sample data as INDEPENDENT or DEPENDENT:

An educator wants to determine if a tutoring program improves student test scores in math.A random sample of 30 students is given apre-test and then subjected to a month long tutoring program.At the end of the tutoring program the students take a post-test.The educator wants to do a hypothesis test to determine if the post-test scores are significantly better than thepre-testscores.

Identify the sample data as INDEPENDENT or DEPENDENT:

The General SocialSurvey(GSS) polleda randomsampleof 209 people aged 18-30 in 2000 and asked them how many hours per week they spent on the Internet. The sample mean in 2000 was 6.75 hrs. In 2006, the GSS took another random sample of 541 peopleaged 18-30 and asked the same question.The sample mean in 2006 was 7.34.Does this mean that people aged 18-30 spend more time on theinternetin 2006 than they did in 2000?