A administrator wants to know what is the average starting
salary, μ, for students graduating from...
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A administrator wants to know what is the average startingsalary, μ, for students graduating from her college. She is able toobtain data for 100 randomly selected students. For these 100students, the average is $70,000, and the SD is $10,000. What is a99% confidence interval for μ?
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Solution Given that 70000s 10000n 100Degrees of freedom df n 1
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