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st-Food Bills for Drive-Thru Customers A random sample of 44 cars in the drive-thru of a popular fast food rest vealed an average bill of

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st-Food Bills for Drive-Thru Customers A random sample of 44 cars in the drive-thru of a popular fast food rest vealed an average bill of $ 19.81 per car. The population standard deviation is $4.83. Estimate the mean bill for all c m the drive-thru with 91% confidence. Round intermediate and final answers to two decimal places.

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