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A randomly selected sample of n = 12 students at a university is asked, How much did you spend for textbooks this semester? The responses,
A randomly selected sample of n = 12 students at a university is asked, "How much did you spend for textbooks this semester?" The responses, in dollars, are the following.
200 | 175 | 450 | 300 | 350 | 250 | 150 | 200 | 320 | 370 | 404 | 250 |
Computer output with a 95% confidence interval for the population mean is shown in the following figure. Use the Empirical Rule to create an interval that estimates the textbook expenses of 95% of the individual students at the university. (Round the answer to the nearest dollar.)
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