Each month National Association of Purchasing Managers publishes NAPM index. One of problems asked on the survey to purchasing agents is: Do you think the economy is expanding? Last month, of the 300 responses, 160 answered yes to problem. This month, 170 of the 290 responses indicated they felt the economy was expanding. At the .05 significance level, can we conclude that the larger proportion of agents believe the economy is expanding this month?