The manager of the bank where you work tells you that your bank has $6 million in excess reserves. She also tells you that the bank has $400 million in deposits and $362 million in loans. Given this information you find that the reserve requirement must be a. 11 percent. b. 8 percent. c. 9.5 percent. d. 1.7 percent.

Asupermarket has been experiencing long lines during peak periods of the day. the problem is noticeably worse on certain days of the week, and the peak periods are sometimes different according to the day of the week. there are usually enough workers on the job to open all cash registers. the problem is knowing when to call some of the workers stocking shelves up to the front to work the checkout counters. how might decision models the supermarket? what data would be needed to develop these models?