As an aid for improving students€™ study habits, nine students were randomly selected to attend a seminar on the importance of education in life. The table shows the number of hours each student studied per week before and after the seminar. At α = 0.10, did attending the seminar increase the number of hours the students studied per week?

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9 12 12 6 9 17 9 20 15 3 10 18 Before After 13 6. 15 21 2 22