Question Statistics Q Guidelines: You may use all of the resources (e.g., textbook, other books, websites) available to you,. Your work must be done individually. Remember that your assignment must be typed in a Word document (pdfs also accepted) and can be no more than 16 pages in length. The assignment must be submitted as an attachment through the Blackboard assignment link before 4:00 pm on Sunday, November 15, 2015. Completed assignment will be accepted at any time until the deadline. You may submit updated/revised documents up until the deadline. Your last submission will be the one graded.

Each question is worth 10 points.

1. An educational psychologist was interested in time management by students. She had a theory that students who did well in school spent less time involved with online social media. She found out, from the American Social Media Research Collective, that the average American high school student spends 5.72 hours per week using online social media. She then obtained a sample of 45 students who had been named valedictorians of their high schools. These valedictorians spent an average of 14.13 hours using online social media every week. Their standard deviation was 6.80. Is there a difference between the valedictorians and the American high school average?

2. A psychology professor was curious how psychology majors fared economically compared to business majors. Did they do better or did they do worse five years after graduation? She did some research and learned that the national mean for the salary of business majors five years after graduation was $62,500. She surveyed 31 recent psychology graduates at her school and found their mean salary was $48,000 with a standard deviation of $10,000. Is there a difference between the psychology graduate and the business graduate average?