Question 1

A researcher puts the name of each person in a sampling frame list on a 3" x 5" card, shuffles the cards thoroughly, and then selects 35 names from the top of the pile of cards for a phone interview study. What type of sampling procedure is being used?
A) judgment sample
B) simple random sample
C) stratified sample
D) area sample

Accepted Answer

The sampling procedure being used is a simple random sample, as each person in the sampling frame has an equal chance of being selected and the selection is made randomly through shuffling the cards.

Question 2

The head of the marketing research department instructs field interviewers to interview owners of DVD players in a shopping mall such that they each interview 10 Sony owners, 8 Panasonic owners, 6 Toshiba owners, and 4 owners of other brands. Which type of sampling procedure is being used?
A) systematic sample
B) quota sample
C) area sample
D) multistage sample

Accepted Answer

This is a quota sample because the interviewer is instructed to have a specific number of respondents from each group (Sony, Panasonic, Toshiba, and other brands) rather than randomly selecting participants.

Question 3

A national political pollster randomly selects ten states, then randomly selects five counties within each state, then randomly selects five voting precincts within these counties, then randomly selects five blocks within these precincts, and finally, randomly selects five households for door-to-door interviews about their voting intentions in the next Presidential election. This is best called a(n) ____.
A) simple random sample
B) multistage area sample
C) systematic sample
D) nonprobability sample

Accepted Answer

This is a multistage area sample because the sampling is done in multiple stages and is based on areas (states, counties, precincts, blocks, and households).

Question 4

A marketing vice-president tells the marketing department to schedule a test market in Dallas because he feels that this city is "typical" of the composition of the target market for a new product nationally. The vice president is asking for a(n) ____.
A) judgment sample
B) area sample
C) cluster sample
D) convenience sample

Accepted Answer

The vice-president is using a judgment sample by assuming that Dallas is typical of the target market. This is based on personal judgment and not a scientific sampling method.

Question 5

A sampling procedure that assures each element in the population of an equal chance of being included in the sample is called ____.
A) simple random sampling
B) primary random sampling
C) primary sampling
D) stratified sampling

Accepted Answer

Simple random sampling ensures that every element in the population has an equal chance of being selected for the sample.

Question 6

Which probability sampling technique is economically efficient and uses a group of elements as the primary sampling unit?
A) simple random
B) snowball
C) cluster
D) quota

Accepted Answer

Cluster sampling is economically efficient as it involves selecting groups of elements as primary sampling units rather than individual elements. This reduces the cost and time required for data collection.

Question 7

A researcher for Procter & Gamble selects five states randomly, and then selects 10 supermarket chains within each of these states to call for a phone survey for a test market of a new shampoo. Which type of sampling procedure is being used?
A) systematic sample
B) simple random sample
C) nonprobability sample
D) cluster sample

Accepted Answer

The researcher is using a cluster sampling procedure by selecting five states as clusters and then selecting 10 supermarket chains within each of these clusters. This is a form of probability sampling because each state and supermarket chain has a known probability of being selected, but it is not a simple random sample because the clusters are not selected randomly.

Question 8

All of the retail stores nationwide of Sears Roebuck and Co. form the ____________________ of Sears' stores.

Accepted Answer

The answer of All of the retail stores nationwide of...

Question 9

A researcher is interested in studying attitudes about raw milk sales and has reason to believe that urban, suburban, and rural groups will vary in their responses. The researcher knows that the population being studied is 50% urban, 40% suburban, and 20% rural. She classifies the potential participants as urban, suburban, or rural residents, and then, for a sample totaling 100, randomly selects 50 individuals from the urban group, 40 from the suburban group, and 20 from the rural group. The researcher is using a(n) ____.
A) proportional stratified sample
B) balanced stratified sample
C) even stratified sample
D) primary stratified sample

Accepted Answer

The sample is proportional to the population being studied, as the researcher has selected participants from each group based on their respective percentages in the population. This is a proportional stratified sample. B and C are not accurate terms, and D is not a commonly used term in sampling.

Question 10

When a local television station sends a crew to interview joggers in the city park on a beautiful spring day, what type of sample is being used?
A) cluster sample
B) multistage area sample
C) systematic sample
D) convenience sample

Accepted Answer

This is a convenience sample because the joggers being interviewed are the ones who happen to be present in the park at that time and are easily accessible to the television crew. Convenience sampling is often used in situations where it is not practical or feasible to select a representative sample using more rigorous methods.

Question 11

Which statement comparing quota sampling with probability sampling is true?
A) Quota sampling typically costs less than probability sampling.
B) Quota sampling is typically less convenient for researchers than is probability sampling.
C) A study using quota sampling will typically take substantially more time to complete.
D) Quota sampling generally provides a more random sample than probability sampling.

Accepted Answer

Quota sampling often costs less than probability sampling because it does not require a complete list of the population and can be executed more quickly and with fewer resources. Probability sampling, on the other hand, involves random selection, which can be more costly and time-consuming to implement correctly.

Question 12

Which type of nonprobability sampling technique is used in the Consumer Price Index?
A) convenience
B) judgment
C) cluster
D) stratified

Accepted Answer

The Consumer Price Index (CPI) uses a judgment sampling technique, where the selection of items and outlets for price collection is based on expert judgment to ensure that the sample is representative of the market and consumer spending patterns.

Question 13

When a telephone book database is re-arranged so that it is organized by phone number instead of by last name, a ____________________ directory has been created.

Accepted Answer

The answer of When a telephone book database is re-arranged...

Question 14

A researcher wants to select 50 customers from a sampling frame of 250 customers who have purchased at least $10,000 worth of products from his company within the past six months. The researcher wants to use a systematic sampling technique. After randomly selecting a starting point, the researcher should select every ____ name on the list.
A) 20th
B) 10th
C) 5th
D) 50th

Accepted Answer

The answer of A researcher wants to select 50 customers...

Question 15

Which technique uses nonprobability sampling, in which an experienced individual selects the sample based on his or her judgment about some appropriate characteristics required of the sample member?
A) area sample
B) subjective sample
C) stratified sample
D) judgment sample

Accepted Answer

Judgment sample uses nonprobability sampling and involves an experienced individual selecting the sample based on their judgment about the appropriate characteristics required of the sample member. The other options listed are probability sampling techniques.

Question 16

A(n) ____________________ is a subset of some larger population that is measured or observed in some way to infer what the entire population is like.

Accepted Answer

The answer of A(n) ____________________ is a subset of some...

Question 17

When a researcher conducts personal interviews with 100 percent of the salespeople within his organization, the researcher is using a(n) ____________________.

Accepted Answer

The answer of When a researcher conducts personal interviews with...

Question 18

When some elements of the target population are omitted from the list of elements, ____________________ error may occur.

Accepted Answer

The answer of When some elements of the target population...

Question 19

In which type of sampling is a subsample drawn using simple random sampling within each stratum?
A) cluster sampling
B) stratified sampling
C) systematic sampling
D) convenience sampling

Accepted Answer

In stratified sampling, the population is divided into homogenous subgroups or strata, and a sample is drawn from each stratum using simple random sampling. This allows for a more representative sample, as each stratum is given equal representation.

Question 20

A marketing researcher wants to put together four focus groups of 18-24 year-old males who are "heavy downloaders of music" (defined as downloading 50 songs per month). Instead of asking people at a shopping mall whether they download music from the Internet, he finds one person in the target market who qualifies, and then asks that person to suggest the names of two other males between the ages of 18-24 who download music. The researcher will invite those two to participate in the focus group, and then they are each asked to suggest two others similar to themselves to participate in the focus group study. This procedure describes a ____.
A) stepwise sample
B) judgment sample
C) area sample
D) snowball sample

Accepted Answer

This procedure describes a snowball sample, where participants are recruited through referrals from other participants. The researcher starts with one person who meets the criteria and then asks that person to suggest others, who in turn suggest others, creating a "snowball" effect. This sampling technique is commonly used when the target population is hard to reach or identify, and it can be effective in finding niche groups with specific characteristics, such as heavy downloaders of music in this case.

Quiz 12: Sampling Designs and Sampling Procedures

A researcher puts the name of each person in a sampling frame list on a 3" x 5" card, shuffles the cards thoroughly, and then selects 35 names from the top of the pile of cards for a phone interview study. What type of sampling procedure is being used?

The head of the marketing research department instructs field interviewers to interview owners of DVD players in a shopping mall such that they each interview 10 Sony owners, 8 Panasonic owners, 6 Toshiba owners, and 4 owners of other brands. Which type of sampling procedure is being used?

A marketing vice-president tells the marketing department to schedule a test market in Dallas because he feels that this city is "typical" of the composition of the target market for a new product nationally. The vice president is asking for a(n) ____.

A sampling procedure that assures each element in the population of an equal chance of being included in the sample is called ____.

Which probability sampling technique is economically efficient and uses a group of elements as the primary sampling unit?

A researcher for Procter & Gamble selects five states randomly, and then selects 10 supermarket chains within each of these states to call for a phone survey for a test market of a new shampoo. Which type of sampling procedure is being used?

All of the retail stores nationwide of Sears Roebuck and Co. form the ____________________ of Sears' stores.

When a local television station sends a crew to interview joggers in the city park on a beautiful spring day, what type of sample is being used?

Which statement comparing quota sampling with probability sampling is true?

Which type of nonprobability sampling technique is used in the Consumer Price Index?

When a telephone book database is re-arranged so that it is organized by phone number instead of by last name, a ____________________ directory has been created.

Which technique uses nonprobability sampling, in which an experienced individual selects the sample based on his or her judgment about some appropriate characteristics required of the sample member?

A(n) ____________________ is a subset of some larger population that is measured or observed in some way to infer what the entire population is like.

When a researcher conducts personal interviews with 100 percent of the salespeople within his organization, the researcher is using a(n) ____________________.

When some elements of the target population are omitted from the list of elements, ____________________ error may occur.

In which type of sampling is a subsample drawn using simple random sampling within each stratum?