Exam 13: Basic Sampling Issues

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The size of the population is needed in order to compute a skip interval.

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The "bigness" of Big Data can be seductive and lead researchers to not question which of the following?

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Simple random sampling is often used as a substitute for systematic sampling.

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_____________ is the total group of people from whom information is obtained.

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The type of error which results from the fact that samples are not perfectly representative of the populations from which they are drawn is known as _______.

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Stratified random samples are often confused with which of the following nonprobability sampling techniques?

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From the standpoint of statistical efficiency,cluster samples are generally less efficient than other types of probability samples.

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One of the advantages of Internet surveys is that target respondents can complete the survey at their convenience.

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Of the following,which is the most important consideration when choosing a sample?

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Which of the following could serve as the basis for forming a stratum?

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

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Researchers prefer simple random samples to stratified samples because of their potential for greater statistical efficiency.

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When and why does sampling error occur? If the sampling error emanates from some type of improper execution of the sampling plan what is it called? Can it be measured? What kind of sampling error can be measured and how can it be reduced?

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

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Under what kind of sampling procedure must the researcher adhere closely to precise selection procedures to ensure that the results are projectable to the population under study?

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The first step in the development of a sampling plan is to:

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

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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.

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Characterize the ideal sampling frame.How often is an "ideal" sampling frame available? If an "ideal" sampling frame isn't available,what kind of sample frame is needed?

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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?

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