Age Days 66 1 72 3 78 3 72 2 74 2 60 0 78 3 68 2 70 3 70 2 80 4 78 3 80 3 80 3 76 3 74 2 76 3 78 4 74 3 64 1 74 2 68 2 66 1 78 1 72 2 72 2 86 6 78 1 78 3 78 1 66 2 76 3 72 3 70 2 74 4 82 5 82 4 78 4 82 5 80 4 80 3 72 3 88 4 70 2 70 2 72 3 76 2 68 2 80 2 82 3 74 3 72 2 80 3 74 3 78 3 80 3 90 6 76 3 72 1 76 4 72 4 82 4 76 2 78 4 66 1 80 4 82 4 72 2 86 5 80 4 72 2 64 2 76 3 78 3 70 1 74 3 84 3 76 4 68 3 72 2 82 5 76 4 70 3 76 2 78 3 74 3 80 4 86 5 86 4 70 2 76 2 74 3 72 1 86 5 86 5 82 4 74 1 76 4 84 4 96 5 72 1 74 2 78 3 68 1 80 4 68 2 80 5 66 1 80 2 76 5 70 2 76 3 86 4 80 4 84 3 74 3 78 3 78 3 80 3 84 4 80 5 72 1 70 1 80 3 66 0 70 2 72 1 76 2 70 3 70 2 68 3 72 1 82 3 82 4 84 6 74 3 68 2 66 1 78 3 74 3 76 3 70 1 64 0 80 3 78 4 84 4 72 2 84 4 76 3 74 2 88 4 84 3 70 2 80 4 88 5 74 3 80 4 84 5 70 2 76 3 78 2 78 4 68 2 82 4 78 3 80 5 74 2 68 2 76 2 76 2 66 1 80 3 76 4 80 3 84 5 80 4 80 2 86 5 70 3 70 2 72 3 80 3 76 4 62 0 86 7 76 3 70 2 80 4 66 1 72 4 68 2 76 4 70 2 76 3 74 2 84 4 76 1 66 0 74 3 70 3 82 3 76 4 78 4 84 5 76 3 86 5 70 1 76 2 74 3 90 5 78 5 78 3 76 3 70 4 76 3 78 4 74 3 76 2 72 3 82 4 82 3 82 4 72 3 80 4 70 2 72 2 84 4 76 3 80 4 74 2 80 4 78 3 76 2 70 0 90 5 90 6 72 1 72 2 80 4 72 3 70 2 66 1 74 2 74 1 70 2 70 1 64 0 68 2 78 2 68 2 86 4 80 3 84 4 66 2 84 4 66 1 86 4 70 2 82 4 78 4 80 4 88 5 70 2 78 4 82 5 78 2 74 3 66 3 76 4 74 2 72 1 80 3 70 2 66 2 84 5 74 3 70 3 66 1 72 3 68 2 74 3 72 4 70 2 70 3 76 2 84 4 76 4 88 4 72 3 76 3 72 3 64 3 70 2 78 3 70 1 70 2 78 4 84 4 78 5 78 4 76 3 78 4 86 4 70 2 70 3 84 6 88 5 76 3 80 2 86 5 74 2 82 5 84 5 78 2 68 2 80 3 78 4 74 2 76 3 74 3

16.47 Xr16-47 National news on television features com- mercials describing pharmaceutical drugs that treat ailments that plague older people. Apparently, the major networks believe that older people tend to watch national newscasts. The marketing manager of a drug company conducted a survey that took a random sample of people older than 60 years of age and recorded their age and the number of days they watched national news on television in a typical week. a. Test to determine whether there is enough evi- dence to conclude that there is a linear relation- ship between age and number of days watching national news. b. Calculate the coefficient of determination and briefly describe what it tells you. a