nt study of the laundry habits of Americans included the time in minutes of the wash cycle. A sample of 40 observations follows. Determine the mean and the median of a typical wash cycle. 35 37 39 28 37 33 33 32 38 37 40 37 32 28 29 38 33 35 46 36 44 36 34 37 39 37 35 39 34 39 39 31 33 38 37 32 43 31 31 35 68. FILE Trudy Green works for the True-Green Lawn Company. Her job is to solicit lawn- care business via the telephone. Listed below is the number of appointments she made in each of the last 25 hours of calling. What is the arithmetic mean number of appoint- ments she made per hour? What is the median number of appointments per hour? Write a brief report summarizing the findings. 5 2 6 4 5 7 8 6 4 3 4 4 5 2 8 3 69. The Split-A-Rail Fence Company sells three types of fence to homeowners in suburban Seattle, Washington. Grade A costs $5.00 per running foot to install, Grade B costs $6.50 per running foot, and Grade C, the premium quality, costs $8.00 per running foot. Yesterday, Split-A-Rail installed 270 feet of Grade A, 300 feet of Grade B, and 100 feet of Grade C. What was the mean cost per foot of fence installed? 70. Rolland Poust is a sophomore in the College of Business at Scandia Tech. Last semester he took courses in statistics and accounting, 3 hours each, and earned an A in both. He earned a B in a 5-hour history course and a B in a 2-hour history of jazz course. In addition, he took a 1-hour course dealing with the rules of basketball so he could get his license to officiate high school basketball games. He got an A in this course. What was his GPA for the semester? Assume that he receives 4 points for an A, 3 for a B, and so on. What measure of central tendency did you calculate? What method did you use? 71. The table below shows the percent of the labor force that is unemployed and the size of the labor force for three counties in northwest Ohio. Jon Elsas is the Regional Director of Economic Development. He must present a report to several companies that are considering locating in northwest Ohio. What would be an appropriate unemployment rate to show for the entire region? County Percent Unemployed Size of Workforce Wood 4.5 15,300 Ottawa 3.0 10,400 Lucas 10.2 150,600 72. FILE The American Diabetes Association recommends a blood glucose reading of less than 130 for those with Type 2 diabetes. Blood glucose measures the amount of sugar in the blood. Below are the readings for February for a person recently diagnosed with Type 2 diabetes. 112 122 116 103 112 96 115 98 106 111 106 124 116 127 116 108 112 112 121 115 124 116 107 118 123 109 109 106