(Solution Library) [10 marks] Suppose that you are to plan a survey of starting salaries for recent liberal arts major graduates from Penn State. From a
Question: [10 marks] Suppose that you are to plan a survey of starting salaries for recent liberal arts major graduates from Penn State. From a pilot study you estimate that the standard deviation is about $8,000. What sample size do you need to have a margin of error equal to $500 with 95% confidence level?
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