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...

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 18.68 per week using online social media. She then obtained a sample of 31 students who had been named the valedictorians of their high schools. These valedictorians spent an average of 16.24 hours using online social media every week. Their standard deviation was 6.80. Use alpha of .05 and a two-tailed test to determine whether valedictorians spent a different amount of time on social media.