The answer to One sample tests of hypothesis
Traditionally, two percent of the citizens of the United States live in a foreign country because they are disenchanted with U.S. politices or social attitudes. In order to test if this prportion has increased since the September 11, 2001, terror attacks, U.S. consulates contacted a random sample of 400 of these expatriates. The sample yield 12 people who report they are living overseas because of political or social attitudes. Can you conclude this data shows the proportion of politically motivated expatriates has increased Use the 0.05 significance level.