1. Credit Card Use. Consider the hypothetical bank data in the table below on consumers' use of credit card credit facilities. Create a small worksheet in Excel to illustrate one pass through a simple neural network. Used Credit Years: number of years the customer has been with the bank Salary: customer's salary (in thousands of dollars) Used Credit: 1 = customer has left an unpaid credit card balance at the end of at least one month in the prior year, 0 = balance was paid off at the end of each month