The lingering economic crisis has cost America trillions of dollars in lost wealth and also has levied a heavy toll on the national psyche (The Wall Street Journal, December 21, 2009).

According to a recent poll, just 33% of those surveyed said America was headed in the right direction. Suppose this poll was based on a sample of 1,000 people. Does the sample evidence suggest that the proportion of Americans who feel that America is headed in the right direction is below 35%?

Use a 5% level o f significance fo r the analysis. What if the sample size was 2,000? P-56