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Population standard deviation gross earnings

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Reference no: EM131726035

For 30 randomly selected Rolling Stones concerts, the mean gross earnings is 2.75 million dollars. Assuming a population standard deviation gross earnings of 0.48 million dollars, obtain a 99% confidence interval for the mean gross earnings of all Rolling Stones concerts (in millions). 

Confidence interval: ( , ).

Reference no: EM131726035

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