CASES on the use of the ortion of customerval. is it fers use Century National Bank Refer to the description of Century National Bank of the end of the Review of Chapters 1-4 on page 129. When Mr. Selig took over as president of Century several years ago. the use of debit cards was just beginning. He would like an update on the use of these cards. Develop a 95% conti dence interval for the proportion of customers using these cards. On the basis of the confidence interval, is it reason- able to conclude that more than half of the customers use a debit card? Write a brief report interpreting the results, fick A.5 Banking Data Set--Century National Bank Case Balance Account balance in $ ATM= Number of ATM transactions in the month Services Number of other bank services used Debit = Account has a debit card (1 = yes, o no) Interest Receives Interest on the account (1 = yes, 0 = no) City = City where banking is done 60 Accounts Serkes Deb e res City 1.735 1326 1.218 1.545 2.215 090 2,204 2.400 2,557 2.276 1,338 2076 1,708 2,138 1995 2.375 1155 1,120 1.125 1,616 10 755