431 randomly selected Huntington National Bank customers were asked: "Overall, how satisfied are you with Huntington National Bank?" 76% of those surveyed indicated that they were highly satisfied. (a) Calculate the 99% confidence interval for the proportion of all Huntington National Bank customers who are highly satisfied. Round your answers to three decimal places. 03 The 99% confidence interval is [ (b) Based on this interval, can we be 99% confident that more than 60% of all Huntington National Bank customers are highly satisfied? (Click to select) , the interval is (Click to select) | 0.60