In the following situations, decide whether you would use a personal interview, telephone survey or self-administered questionnaire. Give your reasons.

a A survey of the residents of a new suburb on why they happened to select that area in which to live. (You also wish to secure some information about what they like and do not like about life in the suburb.)

b A poll of students at Metro University on their preferences among three candidates who are running for presidency of the Student Union.

c A survey of 58 wholesale grocery companies in Sweden on their personnel management policies for warehouse personnel.
d A survey of financial officers of the Fortune 500 corporations to learn their predictions for the economic outlook in their industries in the next year.
e A study of applicant requirements, job tasks and performance expectations as part of a job analysis of student work–study jobs on a college campus of 2,000 students, where 1,500 are involved in the work–study programme.