Average cost of books per student last semester

Reference no: EM13110060

At a certain university, the average cost of books per student was $330 per student last semsester. In a sample of 50 students this semester, their average cost was $355 with a standard deviation of $85. The Dean of Students believes that the costs are greater this semester. What is the test value for this hypothsis?

Reference no: EM13110060

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