Compu-Ask Corporation has developed a stand-alone computerized interview system which can be adapted to almost any type of survey. It can fit on a personal digital assistant (PDA) -sized computer, and the respondent answers questions directly using a stylus once the interviewer has turned on the computer and started up the program. Indicate the appropriateness of this interviewing system in each of the following cases.
a. A survey of plant managers concerning a new type of hazardous waste disposal system
b. A survey of high school teachers to see if they are interested in a company’s videotapes of educational public broadcast television programs
c. A survey of consumers to determine their reactions to a nonrefrigerated variety of yogurt