6.The United States is not usually thought of as a nation of parakeet lovers.Yet in a census of parakeet owners in selected comparable countries, the United States ranked second, with eleven parakeet owners per hundred people.The conclusion can be drawn from this that people in the United States are more likely to own parakeets than are people in most other countries. Knowledge of which of the following would be most useful in judging the accuracy of the conclusion?
The number of parakeets in the United States.
The number of parakeet owners in the United States.
The number of parakeet owners per hundred people in the country that ranked first in the census.
The number of parakeet owners in the United States compared to the numbers of owners of other pet birds in the United States.
The numbers of parakeet owners per hundred people in the countries not included in the census.
7. Until 1984 only aspirin and acetaminophen shared the lucrative nonprescription pain-reliever market. In 1984, however, ibuprofen was expected to account for fifteen percent of all nonprescription pain-reliever sales.On that basis business experts predicted for 1984 a corresponding fifteen percent decrease in the combined sales of aspirin and acetaminophen. The prediction mentioned in the last sentence above was based on which of the following assumptions?
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