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Contents of barrels of whiskey are measured for alcohol content. If 12 barrels are tested and found to have an average .45abv (alcohol by volume)

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Contents of barrels of whiskey are measured for alcohol content. If 12 barrels are tested and found to have an average .45abv (alcohol by volume) with standard deviation .03, find a 90% confidence interval for the true mean. [:4344, .4656] O [.4414,.4586] O [.4357, .4642] O [.4326, .4692]

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