Quality Progress, February 2005 reports on the results achieved by Bank of America in improving customer satisfaction and customer loyalty by listening to the "voice of the customer." A key measure of customer satisfaction is the response on a scale from 1 to 10 to the question "Considering all the business you do with Bank of America what is your overall satisfaction with Bank of America?" Suppose that a random sample of 350 current customers results in 195 customers with a response of 9 or 10 representing "customer delight." Find 95% confidence interval for the true proportion of all current Bank of America customers who would respond with a 9 or 10. Are we 95% confident that this proportion exceeds .48 the historical proportion of customer delight for Bank or America?