Exam 9: Selecting the Sample

________ are those purchased or otherwise procured from someone or some company that has compiled email addresses of opt-in members of the population of interest.

Online panel samples are popular,and there are almost no concerns about the true representativeness of samples provided by panel companies because their sample frames are nearly perfect.

Area sampling is a form of cluster sampling and uses a two or three-step approach.

Inspecting some relevant characteristics of the sample(such as distribution of males and females,age ranges,etc.)to judge how well it matches the known distribution of these characteristics in the population is known as:

When a researcher performs an accounting of the complete population,it is called:

A sample is the basic level of investigation.

________,which is a way to select a random sample from a directory or list,is much more efficient(uses less effort)than simple random sampling.

The ________ is a definite sequence of steps which the researcher goes through to draw and ultimately arrive at the final sample.

When a researcher asks respondents for the names or identities of others like themselves who might qualify to take part in the survey,they are using what type of sampling method?

Of the following,which is NOT a step in creating a sample plan:

There are three types of online sampling methods.Of the following,which is NOT a type of online sampling method?

Define probability and nonprobability sampling.What are the advantages and disadvantages of each?

In systematic sampling,the researcher decides on a skip interval,which is calculated by dividing the number of names on the list by the sample size.

With simple random sampling,the probability of being selected into the sample is unequal for all members of the population.

A tractable and more sophisticated application of simple random sampling is to use computer-generated numbers based on the concept of ________,which are numbers whose chance nature is assured.

Even when done conscientiously and with a firm understanding of the population's characteristics,quota sampling cannot rival probability sampling in the minds of researchers.

A ________ is a master source of sample units in the population.

What is a skewed population? How does stratified sampling work with skewed populations?

The flipping of a coin to decide heads or tails,lottery numbers selected by numbered balls,a roulette wheel in a casino,and a hand dealt in a poker game is an example of what type of random sampling?

There are two practical applications in which simple random sample designs are employed quite successfully: random digit dialing and computer-based random samples.