A survey of affluent Americans (those with incomes of $75,000 or more) indicated that 57% would rather have more time than more money (USA Today, January 29, 2003).
a. What condition on how the data were collected would make the generalization from the sample to the population of affluent Americans reasonable?
b. Would it be reasonable to generalize from the sample to say that 57% of all Americans would rather have more time than more money? Explain.