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Exam 11: Basic Sampling Issues

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Question 1

Multiple Choice

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The _____________ is a list of the members or elements from which units to be sampled are selected.

A) population
B) sample frame
C) sample source
D) universe
E) none of the above

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B

Question 2

Multiple Choice

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Which of the following is a correct statement regarding probability samples?

A) The researcher can be sure of obtaining information from a representative cross section of the population of interest
B) Sampling error can be computed.
C) The survey results can be projected to the total population.
D) All of the above statements are correct.
E) None of the above are correct.

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Question 3

Multiple Choice

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Which of the following types of samples enables the researcher to compute sampling error?

What do convenience, judgment, quota, and snowball samples have in common?

If trying to determine how an area or region will vote in an upcoming election, gender would be an appropriate basis for ___________________.

A researcher is developing a body of knowledge for the development of a formal questionnaire. Part of the process involves conducting four focus groups. Outline an appropriate sampling strategy for generating the focus-group respondents.

The difference between the sample result and population value is known as __________.

All other things equal, larger samples will have less ___________ than smaller samples.

What is the most important reason for the growing popularity of nonprobability samples?

Nonprobability samples cost less than probability samples.

In marketing research, it is always preferable to take a census rather than a sample of the population under study.

Suppose a marketing researcher was doing a survey of snow skiers residing in South Louisiana, for the specific purpose of estimating the feasibility of offering discounted snow ski rental equipment. The idea was gauge the need, interest and price expectations of these snow skiers as they head to Colorado or some other snow skiing destination. What type of sample would be needed?

In order to compute a skip interval, the researcher needs to know the desired sample size and the __________.

The prevalence of unlisted numbers in the metropolitan areas of the western United States can lead researchers to use_________________ to make sure the company has a representative sample.

Measurement error includes all factors other than sampling error that may cause inaccuracy and bias.

Researchers use formulas to calculate the sample size they need, the difference between the sample result and population value are___________________.

If a researcher offers beer drinkers an extra incentive to recruit their friends who also drink beer to participate in the study, s/he is using a(n) ________sample.

Simple random samples require a detailed listing of the population of interest.

Multistage area (probability) sampling is used for national surveys or surveys that cover large regional areas.

Stratified sampling is a type of probability sampling.