Recent evidence appears to contradict earlier findings that suggested that those who are physically fit cope better with stressful real-life events. Of a group of healthy women, those randomly assigned to a ten-week program of aerobic exercises performed no better in laboratory tests simulating stressful situations than did the subgroup assigned to a program without exercise.Which of the following, if true, provides evidence for determining whether physical fitness makes one react better to stress?
Answer(s): D
Now is an excellent time to invest in the catering business. A survey conducted by Weddings magazine found that 70 percent of the magazine’s readers want a catered wedding reception. An analysis of the catering industry, however, shows that the current number of caterers can serve only 55 percent of the weddings likely to occur each year.Which of the following, if true, reveals a weakness in the evidence cited above?
Now is an excellent time to invest in the catering business. A survey conducted by Weddings magazine found that 70 percent of the magazine’s readers want a catered wedding reception. An analysis of the catering industry, however, shows that the current number of caterers can serve only 55 percent of the weddings likely to occur each year.Which of the following, if true, would undermine the validity of the investment advice in the paragraph above?
Answer(s): E
The Commerce Department recently put limits on machine-tool imports from two countries whose exports of machine tools into the United States have been substantial. As a result of these restrictions, analysts predict that domestic sales of machine tools manufactured in the United States are bound to rise considerably, starting in the very near future.Which of the following, if true, would be most likely to cause the analysts’ prediction to be inaccurate?
The cities with the densest population have the highest ratio of police officers to citizens. Such cities also have the lowest rates of property crime without contact between perpetrator and victim. Thus maintaining a high ratio of police officers to citizens can serve as an effective deterrent to at least certain kinds of property crime.Which of the following, if true, most seriously weakens the argument above?
Answer(s): B
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