Liza needs to buy a textbook for the next economics class. The price at the college bookstore is $65. One online site offers it for the $55 and another site, for $57. All prices include sales tax. The accompanying table indicates the typical shipping and handling charges for the textbook ordered online. Shipping Method Delivery Time ChargeStandard shipping 3-7 days $3.99Second-day air 2 business days $8.98Next-day air 1 business day $13.98a) What is the opportunity cost of buying online instead of at a bookstore? Note that if you buy the book online, you must wait to get it. b) Show all relevant choices for this student. What determines which of these options the student will choose?

Mountain mouse makes freeze-dried meals for hikers. one of mountain mouse's biggest customers is a sporting goods superstore. every 66 days, mountain mouse checks the inventory level at the superstore and places an order to restock the meals. these meals are delivered by ups in 55 days. average demand during the reorder period and order lead time is 8585 meals, and the standard deviation of demand during this same time period is about 1919 meals.calculate the restocking level for mountain mouse. assume that the superstore wants a 95\% service level. what happens to the restocking level if the superstore wants a higher level of service-say, 99]%? the restocking level for the 95% service level is 117 mealssuppose there are 25 meals in the superstore when mountain mouse checks inventory levels. how many meals should be ordered, assuming a 95% service level?