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Chapter 4: Q. 113 (page 283)

Anonymous? Confidential? One of the most important nongovernment surveys in the

United States is the National Opinion Research Center’s General Social Survey (GSS).

The GSS regularly monitors public opinion on a wide variety of political and social

issues. Interviews are conducted in person in the subject’s home. Are a subject’s

responses to GSS questions anonymous, confidential, or both? Explain your answer.

Short Answer

Expert verified

Because the interviews are performed at the subject's home, they are not anonymous.

Step by step solution

01

Given information

We have to tell about a subject’sresponses to GSS questions anonymous, confidential, or both

02

Explanation

Because the interviews are performed at the subject's home, they are not anonymous.

these interviewer will not discuss the results of a specific individual, it is confidential.

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Most popular questions from this chapter

A local news agency conducted a survey about unemployment by randomly dialing phone

numbers during the work day until it gathered responses from 1000 adults in its state. In

the survey, 19% of those who responded said they were not currently employed. In reality,

only 6% of the adults in the state were not currently employed at the time of the survey.

Which of the following best explains the difference in the two percentages?

a. The difference is due to sampling variability. We shouldn’t expect the results of a

random sample to match the truth about the population every time.

b. The difference is due to response bias. Adults who are employed are likely to lie and

say that they are unemployed.

c. The difference is due to undercoverage bias. The survey included only adults and did

not include teenagers who are eligible to work.

d. The difference is due to nonresponse bias. Adults who are employed are less likely to

be available for the sample than adults who are unemployed.

e. The difference is due to voluntary response. Adults are able to volunteer as a member

of the sample.

Online polls Parade magazine posed the following question: “Should drivers be banned

from using all cell phones?” Readers were encouraged to vote online at parade.com. The

subsequent issue of Parade reported the results:2407(85%)said “Yes” and 410(15%)

said “No.”

a. What type of sample did the Parade survey obtain?

b. Explain why this sampling method is biased. Is 85%probably greater than or less than

the true percent of all adults who believe that all cell phone use while driving should be

banned? Why?

Seat belt use A study in El Paso, Texas, looked at seat belt use by drivers. Drivers were

observed at randomly chosen convenience stores. After they left their cars, they were

invited to answer questions that included questions about seat belt use. In all, 75% said

they always used seat belts, yet only 61.5% were wearing seat belts when they pulled into

the store parking lots. Explain why the two percentages are so different.

Pricey pizza- The cost of a meal might affect how customers evaluate and appreciate food. To investigate, researchers worked with an Italian all-you-can-eat buffet to perform an experiment. A total of139 subjects were randomly assigned to pay either\(4 or\)8 for the buffet and then asked to rate the quality of the pizza on a9-point scale. Subjects who paid \(8 rated the pizza11% higher than those who paid only\)4.

Identify the explanatory and response variables, the experimental units, and the treatments.

No tipping The owner of a large restaurant is considering a new "no tipping" policy and wants to survey a sample of employees. The policy would add 20% to the cost of food and beverages and the additional revenue would be distributed equally among servers and kitchen staff. Describe how to select a stratified random sample of approximately 30 employees. Explain your choice of strata and why stratified random sampling might be preferred in this context.
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