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. the data consistent with the findings of the study for business travel to chicago are contained in the excel online file below. construct a spreadsheet to answer the following questions. open spreadsheet assume the population standard deviation is known to be $9.50 and develop a 95% confidence interval of the population mean total daily travel taxes for chicago. round your answer to two decimal places.