Question: A student randomly selects 150 CDs at a store. The mean price is $7.95 with a standard deviation of $1.30. Construct a 95% confidence interval

A student randomly selects 150 CDs at a store. The mean price is $7.95 with a standard deviation of $1.30. Construct a 95% confidence interval for all CD's at the store. What is the range?

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