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A study of 25 graduates of colleges revealed the mean amount owed by a student was $14,400. The population standard deviation was $2,000. Construct a

A study of 25 graduates of colleges revealed the mean amount owed by a student was $14,400. The population standard deviation was $2,000. Construct a 90% confidence interval for the population mean. Is it reasonable to conclude that the mean of the population is actually $15,000? Tell why or why not. (13,742 15,058) where does the 13742 come from?

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