The first step in conducting survey research is to
a. select the sample.
b. determine the purpose of the survey.
c. construct a questionnaire on interview items.
d. define the population to be surveyed.
Ques. 2The main objection to using anonymous questionnaires is that they
a. may have lower score validity.
b. make follow-ups difficult.
c. may elicit responses that are not as thoughtful or complete.
d. make statistical analysis of data more difficult.
Ques. 3The .95 confidence interval for a population proportion based on a sample of
n cases ranged from .40 to .56. If the sample proportion was unchanged, but the sample size was increased to 4
n, the .95 confidence interval would be about
a. .32 to .64.
c. .44 to .52.
b. .36 to .60.
d. .46 to .50.
Ques. 4In a survey of
n = 100 teachers, 50 preferred year-around school. Set the .95 confidence interval around this sample proportion.
a. .40 to .60
c. .50 to .60
b. .45 to .55
d. .55 to .65
Ques. 5A university surveyed 36 randomly selected graduate students in a pilot study and found that 27 said they favored the new university health insurance plan and 9 said they opposed it. How many students must the university survey in order to make an estimate of how all graduate students feel about the plan with a margin of error to be no more than 5 percentage points? Use the 95 percent confidence level.
a. 187
c. 366
b. 288
d. 950
Ques. 6A sample of 500 voters was surveyed; 400 said they favored a bond issue and 100 said they opposed it. Based on these sample data, estimate at the 95 percent confidence level the proportion in the population that likely favors the bond issue.
a. .77 to .83
c. .79 to .81
b. .78 to .82
d. .75 to .85
Ques. 7Which technique would you recommend to a researcher who is interested in obtaining a good sample of a large population?
a. Questionnaire
c. Either one - they are equally effective
b. Interview
d. Observation
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