CHAPTER 3 74. A recent article suggested that, if you earn $25,000 a year today and the inflation rate continues at 3% per year, you'll need to make $33,598 in 10 years to have the same buying power. You would need to make $44,771 if the inflation rate jumped to 6%. Confirm that these statements are accurate by finding the geometric mean rate of increase. 75. The ages of a sample of Canadian tourists flying from Toronto to Hong Kong were 32, 21, 60, 47, 54, 17, 72, 55, 33, and 41. a. Compute the range. b. Compute the standard deviation. 76. The weights (in pounds) of a sample of five boxes being sent by UPS are 12, 6, 7, 3, and 10. a. Compute the range b. Compute the standard deviation. 77. FILE The enrollments of the 13 public universities in the state of Ohio for the 2017-18 academic year are listed below. University Main and Regional Campuses Enrollment University of Akron 22, 101 Bowling Green State University 19,423 Central State University 1,748 University of Cincinnati 44,969 Cleveland State University 16,667 Kent State University 39,598 Miami University 24,283 Ohio State University 67,524 Ohio University 36,287 Shawnee State University 3,600 University of Toledo 20,491 Wright State University 16,961 Youngstown State University 12,605 a. Is this a sample or a population? b. What is the mean enrollment? c. What is the median enrollment? d. Is there a mode for this distribution? e. Would you select the mean or the median as most representative? Why? f. What is the range of the enrollments? g. Compute the standard deviation. 78. Health issues are a concern of managers, especially as they evaluate the cost of medi- cal insurance. A recent survey of 150 executives at Elvers Industries