Avery popular fast food restaurant is presently staffed with three cash register attendants that are taking orders. upon entering the restaurant, customers must choose from three separate lines, each of which leads to one of the three registers. immediately upon placing their order with the register attendant, customers are given their food and drinks by the register attendant. to analyze this situation, you would use the queuing model for an infinite demand source, multiple servers, and multiple channels.

a. true
b. false

Because of the violent nature of the sport, professional american football players are at risk of suffering concussions (or brain injuries) during the violent collisions that occur between players during the game. violent collisions involving hits to the head are particularly risky. suppose the commissioner of the national football league (nfl) institutes a rule requiring players to wear a new, lighter helmet that is designed to reduce head trauma during collisions between players on the field. while the new helmets the probability of a concussion resulting from each individual collision, at the same time the new helmets could also give football players an incentive to play more , which could potentially the amount of violent collisions and thus the number of concussions suffered by nfl players, all else equal.