Mathematics, 27.01.2021 20:10 Fireburntbudder

The director of the admissions at a large university advises parents of incoming students about the cost of textbooks during a typical semester. He selected a sample of 100 students and recorded their textbook expenses for the semester. He then computed a sample mean cost of $315.40 and a sample standard deviation of $43.20 Required:
Using the 0.10 level of significance, is there evidence that the population mean is above $300?

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The director of the admissions at a large university advises parents of incoming students about the...