Public Policy and Political Science In a recent nationwide study, it was reported that U.S. adults continue to believe that big companies and lobbyists have too much power. In particular, 85% of those polled indicated that PACs (Political Action Committees) have too much influence in Washington. Suppose 50 U.S. adults are selected at random.
a. What is the probability that at least 45 U.S. adults think PACs have too much power?
b. What is the probability that between 38 and 42 (inclusive) U.S. adults think PACs have too much power?
c. Suppose 35 U.S. adults think PACs have too much power. Is there any evidence to suggest the poll results are wrong? Justify your answer.