kay7060
24.04.2020 •
Mathematics
The director of admissions at a large university advises parents of incoming students about the cost of textbooks. A sample of 100 students enrolled in the university indicates a sample mean of $315.40 with a sample standard deviation of $43.20. Using the .05 level of significance, is there evidence that the population average is above $300? What is the predominant formula you will use to solve the problem?
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Ответ:
10 cars
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