6 of 12 0//1 Current Attempt in Progress Incorrect. According to Runzheimer International, a typical business traveler spends an average of $281 per day in Chicago. This cost includes hotel, meals, car rental, and incidentals. A survey of 55 randomly selected business travelers who have been to Chicago on business recently is taken. For the population mean of $281 per day, what is the probability of getting a sample average of more than $273 per day if the population standard deviation is $47 ? Appendix A Statistical Tables