Arestaurant chain is working on improving the quality of its food and service. to track its progress it recruits customers who agree to respond to customer satisfaction surveys once every three months over the next two years. what kind of data is the restaurant chain colleing?
a. panel data
b. focus group data
c. external secondary data
d. internal secondary data
e. scanner data

Aplant manager is considering buying additional stamping machines to accommodate increasing demand. the alternatives are to buy 1 machine, 2 machines, or 3 machines. the profits realized under each alternative are a function of whether their bid for a recent defense contract is accepted or not. the payoff table below illustrates the profits realized (in $000's) based on the different scenarios faced by the manager. alternative bid accepted bid rejected buy 1 machine $10 $5 buy 2 machines $30 $4 buy 3 machines $40 $2 refer to the information above. assume that based on historical bids with the defense contractor, the plant manager believes that there is a 65% chance that the bid will be accepted and a 35% chance that the bid will be rejected. what is the expected value under perfect information (evpi)?