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

Exercise 2-12 cost behavior; high-low method [lo2-3, lo2-4] speedy parcel service operates a fleet of delivery trucks in a large metropolitan area. a careful study by the company’s cost analyst has determined that if a truck is driven 120,000 miles during a year, the average operating cost is 11.6 cents per mile. if a truck is driven only 80,000 miles during a year, the average operating cost increases to 13.6 cents per mile. required: 1.& 2. using the high-low method, estimate the variable and fixed cost elements of the annual cost of truck operation. (round the "variable cost per mile" to 3 decimal places.)