Confidence in banks: a poll conducted in 2012 asked a random sample of 1268 adults in the united states how much confidence they had in banks and other financial institutions. a total of 144 adults said that they had a great deal of confidence. an economist claims that less than 11% of u. s. adults have a great deal of confidence in banks. can you conclude that the economist's claim is true? use both =α0.05 and =α0.10 levels of significance and the p-value method with the ti-84 plus calculator.