What is test value for hypothesis for average cost of books

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Reference no: EM13146658

At a certain university, the average costs of books was $340 per student last semester and the population standard deviation was $90. This semester a sample of 45 students revealed and average cost of books of $370 per student. The Dean of Students believes that cost are greater this semester. What is the test value for this hypothesis?

Reference no: EM13146658

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