A teacher wishes to study the amount of time students in his statistics course spend each week in study for the course.  He believes that the average should be 6 hours (two hours outside class for every hour in class), with a standard deviation of 2 hours.  He has the students keep track of and report the time spent in study during a typical week.  A total of 30 students respond. The average time spent is 6.5 hours. With the information, use the four-step procedure, conduct a two-tailed hypothesis test (alpha level = .05)

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