The Clayton Act provided for a bipartisan three-member Civil Service Commission to draw up and administer competitive examinations to determine the fitness of appointees to federal office

Vaikel Inc., an automobile manufacturing company, conducts a survey to find out people's opinion about its latest car, Vaikel 6.0, and their level of satisfaction with it

It requests a few people who recently purchased Vaikel 6.0 to participate in the survey and asks them to log on to a certain Web site at a given time. After they log on to the site, an online moderator runs a discussion about the car and allows the participants to respond. In this case, Vaikel uses a(n)__________for conducting a survey. Fill in the blanks with correct word.

What is the chief advantage of using each of the following contact methods: mail questionnaire, telephone interview, and personal interview?

What will be an ideal response?