In an attempt to assess total daily travel taxes in various cities, the Global business TravelAssociation conducted a study of daily travel taxes on lodging, rental car, and meals (GbTAFoundation website, October 30, 2012). The data contained in the DATAfile named TravelTax are consistent with the findings of that study for business travel to Chicago. Assumethe population standard deviation is known to be $8.50 and develop a 95% confidenceinterval of the population mean total daily travel taxes for Chicago.

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In an attempt to assess total daily travel taxes in various cities, the Global business Travel
Association conducted a study of daily travel taxes on lodging, rental car, and meals (GbTA
Foundation website, October 30, 2012). The data contained in the DATAfile named TravelTax are consistent with the findings of that study for business travel to Chicago. Assume
the population standard deviation is known to be $8.50 and develop a 95% confidence
interval of the population mean total daily travel taxes for Chicago.

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