"Where You Will Live the Longest" is the title of a 2006 report on a study of mortality rates in the United States during the 1980s and 1990s. A resident of one of the topranked counties for longevity (Clear Creek, Colorado) followed up the report with her explanation of why people in that area tend to stay lively: "It's because it's too risky not to . . . Don't look closely at the droppings in the driveway and you might not realize they belong to a nearby ferocious animal. Fail to notice the morning ice along the creek and you won't order your propane or woodsplitter in time before winter . . ."3
a. What design (observational study, experiment, sample survey, or anecdotal evidence) was used to produce the original report?
b. What design did the Clear Creek resident use?